ROAD SAFETY AUDIT Santilli Circle and Sweetser Circle Municipality of Everett Prepared For: MassDOT On Behalf Of: WYNN Design and Development Prepared By: AECOM 250 Apollo Drive Chelmsford, MA
Road Safety Audit Santilli Circle and Sweetser Circle Prepared by AECOM Table of Contents Contents Background... 1 Project Data... 1 Project Location and Description... 2 Audit Observations and Potential Safety Enhancements... 7 Summary of Road Safety Audit... 15 List of Appendices Appendix A. Appendix B. Appendix C. Appendix D. RSA Meeting Agenda RSA Audit Team Contact List Detailed Crash Data Road Safety Audit References List of Figures Figure 1: Locus Map Santilli Circle, Everett... 5 Figure 2: Locus Map - Sweetser Circle, Everett... 6 List of Tables Table 1: Participating Audit Team Members... 2 Table 2: Estimated Time Frame and Costs Breakdown... 15 Table 3: Potential Safety Enhancement Summary Santilli Circle... 16 Table 4: Potential Safety Enhancement Summary Sweetser Circle... 19
Road Safety Audit Santilli Circle and Sweetser Circle Prepared by AECOM Background The Federal Highway Administration (FHWA) defines a Road Safety Audit (RSA) as the formal safety examination of an existing or future road or intersection by an independent, multidisciplinary team. The purpose of an RSA is to identify potential safety issues and possible opportunities for safety improvements considering all roadway users. This RSA evaluates the Santilli Circle and Sweetser Circle rotaries along Route 16 Revere Beach Parkway (RBP) in Everett, Massachusetts. Route 16-RBP is under the jurisdiction of the Department of Conservation and Recreation (DCR). A safety audit was scheduled for these rotaries as part of the Massachusetts Environmental Protection Agency (MEPA) approval process for the proposed Wynn Everett Project. MassDOT has identified two Highway Safety Improvement Program (HSIP) crash clusters between 2011 and 2013 at Santilli Circle and one HSIP cluster at Sweetser Circle. A key objective of the RSA is to identify both short-term and long-term safety improvements that can be made throughout the corridor and or at the subject intersections. Project Data An RSA was completed for the rotaries on Thursday, January 28, 2016. The agenda for the RSA meeting held at Everett City Hall is provided in Appendix A of this report. As shown below in Table 1, the audit team consisted of a multidisciplinary team with representatives from state, regional and local agencies providing expertise in the engineering, planning, and maintenance fields. Contact information for the audit team members is provided in Appendix B of this report. Within the email invitation sent on January 20, 2016 to each participant in the RSA, background material was provided. This information included collision diagrams and crash data summaries for the study locations. During the RSA meeting, these materials were reviewed as a group prior to the field visit to the locations. During the RSA field visit, various safety issues were observed and identified. Following the RSA field visit, the team returned to discuss additional concerns and potential solutions for the existing safety issues. Page 1
Road Safety Audit Santilli Circle and Sweetser Circle Prepared by AECOM Table 1: Participating Audit Team Members Audit Team Member Agency/Affiliation Derek Caldwell John Mastera Timothy Paris David Loutzenheiser Mark Abbott Val Soroka Jay Monty Julius Ofurie Al Carrier Chris Chaffee Dirk Grotenhuis Jeff Maxtutis MassDOT District 4 - Traffic MassDOT Highway Safety MassDOT District 4 - Projects MAPC Boston MPO/CTPS DCR City of Everett City of Everett Wynn Design and Development AECOM AECOM AECOM The crashes and collision diagrams were based on crashes reported by Mass State Police between January 2011 and December 2013. At Santilli Circle a total of 83 crashes were reported for the period between 2011 and 2013. Of these, 53 percent were rear-end crashes and 22 percent were angle crashes. Several rear-end crashes occurred when motorists were yielding or failed to yield. A total of 35 percent of the crashes occurred between Noon and 4:00 PM. Two bicycle crashes were recorded. The month with the highest percent of crashes was November (13 percent). The day with the highest percent of crashes was Tuesday (19 percent). Most crashes occurred in daylight hours with clear weather conditions and dry road surface. At Sweetser Circle a total of 56 crashes were reported for the period between 2011 and 2013. Of these, 56 percent were rear-end crashes and 21 percent were side swipe crashes. A total of 39 percent of the crashes occurred between 2:00 PM and 8:00 PM. One bicycle crash was recorded. The month with the highest percent of crashes was November (14 percent). A total of 16 percent of the crashes occurred on Tuesday, Thursday and Saturday. Most crashes occurred in daylight hours with clear weather conditions and dry road surface. Project Location and Description The Audit locations were as follows: Santilli Circle Route 16 (Revere Beach Parkway), Everett Sweetser Circle (Revere Beach Parkway), Everett Page 2
Road Safety Audit Santilli Circle and Sweetser Circle Prepared by AECOM Santilli Circle Santilli Circle is a rotary type intersection with signalized control where Route 16 intersects the rotary on the east and west sides. Route 16 and the rotary are classified as a Principal Arterial by MassDOT. Route 16 west of Santilli Circle carries approximately 73,500 vehicles per day (2011). During the Friday PM peak hour, approximately 6,340 vehicles enter the circle with a two-way traffic volume of approximately 5,500 vehicles on Route 16 west of the circle (2013). The posted speed limit on Route 16 is 35 MPH, but 25 MPH eastbound west of the circle. Route 16 is under the jurisdiction of the Massachusetts Department of Conservation and Recreation (DCR). MassDOT has identified two HSIP crash clusters between 2011 and 2013 at Santilli Circle. The traffic circle (rotary) itself consists of two lanes in one direction circulating counter-clockwise. The following lanes and intersection controls are provided at each approach to the rotary: Route 16 eastbound three through lanes, one right-turn lane and one right-turn slip lane, signal control Route 16 westbound two through lanes and one through-right lane, signal control Santilli Circle Connector westbound one lane entering rotary, Yield control Mystic View Road northbound - one lane entering rotary, uncontrolled Santilli Highway southbound one lane entering rotary, Stop control Santilli Circle interior three lanes in each direction The two traffic signals are coordinated with each other providing two signal phases. There are signalized pedestrian crosswalks across Route 16 (west side) eastbound and westbound, which run concurrently with the traffic movements. There are two pedestrian push button actuated signals: one on the westbound onramp on the west side of rotary and one on the eastbound right turn slip ramp on the west side. Unsignalized pedestrian crosswalks are provided at the Santilli Highway entrance and exit roads; Santilli Circle west of Kelvin Street connecting the MBTA bus stops; and at Kelvin Street. Sidewalks are provided on the outside of the rotary on the north side between Mystic View Road and Kelvin Street. There is an informal path worn through the center of the rotary on a northeast to southwest orientation. No bicycle facilities are provided at Santilli Circle. Figure 1 shows the Santilli Circle study area. Page 3
Road Safety Audit Santilli Circle and Sweetser Circle Prepared by AECOM Sweetser Circle Sweetser Circle is an unsignalized rotary type intersection. Route 16 under Sweetser Circle is classified as a Principal Arterial by MassDOT. Route 99 and Main Street are classified as Urban Principal Arterials. Route 99 south of Sweetser Circle carries approximately 40,400 vehicles per day (2005). During the Friday PM peak hour, over 3,500 vehicles enter the circle with a two-way traffic volume of approximately 2,340 vehicles on Route 99 south of the circle (2013). Sweetser Circle is under the jurisdiction of the Massachusetts Department of Conservation and Recreation (DCR). MassDOT has identified one HSIP crash cluster between 2011 and 2013 at Sweetser Circle The traffic circle (rotary) consists of one wide lane in one direction circulating counter-clockwise. However, traffic generally form two lanes driving within the rotary. All approaches entering the rotary are one lane, but traffic generally forms into two lanes under congested conditions. The following are the four approaches to the rotary, all under Yield control: Route 99 northbound Route 99 southbound Main Street southbound Santilli Circle Connector eastbound Except for crosswalks; there are no pavement markings within the rotary or on the approach roadways. There is push button actuated pedestrian signal on the Route 16 eastbound on-ramp on the southeast corner of the rotary. The signal provides flashing yellow and red ball beacons for both traffic and pedestrians when actuated. A DCR crossing guard is located at this crosswalk for one hour during the morning and afternoon peak hours. This crossing guard provides access for school children on Lower Broadway to schools located on upper Broadway. Unsignalized pedestrian crosswalks are provided across the Route 99 northbound and southbound, Main Street and Santilli Connector roadways. No bicycle facilities are provided at Sweetser Circle. Figure 2 shows the Sweetser Circle study area. Page 4
Road Safety Audit Santilli Circle and Sweetser Circle Prepared by AECOM Figure 1: Locus Map Santilli Circle, Everett Page 5
Road Safety Audit Santilli Circle and Sweetser Circle Prepared by AECOM Figure 2: Locus Map - Sweetser Circle, Everett Page 6
Road Safety Audit Santilli Circle and Sweetser Circle Prepared by AECOM Audit Observations and Potential Safety Enhancements During the RSA meeting prior to the field visit, a brief introduction of the RSA process and a summary of crash information was presented to the audit participants. Following this brief presentation, the members of the audit team were asked to discuss the existing issues that may affect safety within the study area. The audit team then visited the site as a group, at which time observations of various safety concerns and deficiencies were identified and documented. The audit observations identified and documented in this report, have been provided by audit participants or commenter s, and do not necessarily represent those of the report authors AECOM. Comments made by respondents have been reviewed to ensure the report is focused on current safety concerns/recommendations within the study area, are relevant to plans for the corridor, and relate to the goals of this RSA. Provided below is a list of the safety concerns and issues that were identified during the RSA within the study area. Santilli Circle Santilli Circle has a non-traditional rotary configuration with two traffic signals at the intersections with Route 16. This presents unique issues in terms of safety and operations. Much of the MUTCD guidance on roundabouts applies to this configuration. The issues observed are summarized in the following areas which proceed counter-clockwise around Santilli Circle: General Santilli Circle Connector Santilli Highway Route 16 west Mystic View Road/Gateway Center Route 16 east Santilli Circle interior General There are no bicycle facilities provided at Santilli Circle. Most pedestrian wheelchair ramps lack detectable warning devices. The new Woods Memorial Bridge will include bicycle facilities. There are no roundabout directional arrow signs. There are no yield markings on the unsignalized rotary approaches of Mystic View Road northbound and Santilli Circle Connector westbound. Pavement distress such as rutting and shoving were observed. Lack of guide signs directing motorists to roadway intersecting the rotary. Page 7
Road Safety Audit Santilli Circle and Sweetser Circle Prepared by AECOM Santilli Circle Connector The connection between the MBTA westbound bus stop and the Best Buy store to the north is not ADA compliant. The sidewalk abruptly ends and a staircase does not connect to the sidewalk. Sight distance is limited for westbound vehicles approaching the crosswalk across Santilli Circle Connector west of Kelvin Street. The crosswalk distance is long across Santilli Circle Connector Road and vehicle speeds appear to be high. The crosswalk receives moderate volumes because it serves MBTA bus stops on both sides of Santilli Circle Connector. There are no pedestrian crosswalk signs and detectable pedestrian warning devices. Image 1: Lack of ADA sidewalk to/from Best Buy parking lot There is a Yield sign for eastbound motorists making the right turn form the circle to Santilli Circle Connector. The sign is not needed because there is no merging traffic. There is no guide signage for motorists exiting the rotary onto Santilli Circle Connecter. Image 2: Lack of adequate sight distance for westbound Santilli Circle Connector approaching crosswalk Image 3: Lack of Guide Sign to Route 99 Santilli Highway Vehicle queues back from signal blocking the Santilli Highway approach which makes it difficult for motorists to maneuver around stopped vehicles. Route 16 West Westbound vehicles from rotary merge with westbound Route 16 vehicles. Vehicles weave to align in downstream lanes. Lack of pavement markings and signage contribute to rear-end and sideswipe crashes. The pole-mounted traffic signal for westbound traffic exiting the rotary is out of order. There are two overhead green arrow signal beacons which are confusing since there is only one designated through lane. This signal is intended to be actuated only by a pedestrian pushing the button. Page 8
Road Safety Audit Santilli Circle and Sweetser Circle Prepared by AECOM There is a long crosswalk across Route 16. Pedestrian walk times are not sufficient to cross Route16 in one cycle. No countdown or accessible pedestrian signal (APS) signals. High vehicle speeds on the Route 16 westbound merge combined with unexpected pedestrian crossings is a potential safety issue. There is an existing guide sign for eastbound motorists indicating right turn to Mystic View Road and Santilli Circle to Rt. 99. However, the sign is located on the outside right turn lane and does not give motorists enough warning to be in the inside right turn lane to access the Rotary and Rt. 99. The pedestrian push button is broken on the west side of the eastbound right-turn slip ramp. The pedestrian signal across the slip ramp should operate in a pre-emption mode since it is not coordinated with traffic signal. The southbound rotary approach queues make it difficult for vehicles from Santilli Highway to enter the rotary and for vehicles to exit the rotary onto Route 16 westbound. Image 4: Route 16 Westbound Merge and Weave west of Circle Image 5: Long Pedestrian Crosswalk with Limited Walk Time across Route 16 West legs Mystic View Road/Gateway Center There are no pedestrian facilities across Mystic View Road in the vicinity of Santilli Circle. Sight distance for southbound vehicles from the Route 16 right turn slip lane onto Mystic View Road is limited. Pedestrians may be crossing Mystic View Road in this area unexpectedly. There is a worn pedestrian path at corner of Gateway Center that appears to indicate use. Route 16 East Northbound rotary approach has no arrow pavement marking for inside lane. Northbound signal shows a green ball and two forward arrow indications, but should be three forward arrows. Northbound departure side lacks lane markings/arrows for the three lane section. Sight distance for westbound Route 16 traffic approaching intersection is limited by horizontal curve and heavy vegetation on the north side. Image 6: Far traffic lanes show limited sight distance to signal for Route 16 westbound approach to Circle Page 9
Road Safety Audit Santilli Circle and Sweetser Circle Prepared by AECOM There is pavement width for two lanes for the northbound rotary right turn movement to Santilli Circle Connector; however, there does not appear to be adequate geometry or lane designation for two lanes. Review use of the existing no left turn sign for northbound approach within the rotary. This sign may cause confusion as it is on the far side where a left turn is allowed to the westbound. Santilli Circle Interior There is a well-worn northeast-southwest desire line pedestrian path across the circle. There are no pedestrian crosswalks, wheelchair ramps, or signals where it crosses the circle and ramps on the outside or Route 16 in the center. Image 7: Worn Pedestrian Desire Line through Circle Sweetser Circle The issues observed are summarized in the following areas which proceed clockwise around Sweetser Circle: General Main Street Upper Broadway Lower Broadway East Lower Broadway West Santilli Circle Connector General The rotary is missing standard signage for a rotary including chevron entrance signs, advanced warning signs and combined One Way/No Left Turn. Sweetser Circle is a wide roadway with little or no delineation of pavement markings. The approaches to the circle are not striped, but vehicles often queue in two lanes. Motorists generally drive in two lanes within the circle. However, the lack of markings exacerbates confusion when Page 10
Road Safety Audit Santilli Circle and Sweetser Circle Prepared by AECOM vehicles merge and weave within the rotary and is the cause of many sideswipe crashes around the rotary. Vehicles weave between on- and off-ramps within the rotary at relatively high speeds. This is due to the geometry at both the entrance/exit ramps including deflection angles and large circulating radius. There are no bicycle facilities provided at Sweetser Circle. However, bicycle lanes are provided on both sides of Lower Broadway. Some crosswalks are missing pedestrian crosswalk signs, wheelchair ramps and detectable warning devices. Main Street There are no pedestrian crosswalk signs. Image 8: Faded Crosswalk Markings Upper Broadway Pedestrian crossing and yield signs are blocked by tree limbs on Broadway westbound approach. The signs will be even less visible when the tree leafs out. A flashing yellow beacon is present on the approach; however, no supplemental sign is provided. Wheelchair ramp missing. Lower Broadway East Image 9: Blocked Signs due to Overgrowth on Broadway approach to Circle There is a gap in the guard rail between the outside lane and sidewalk on the bridge. Signal across on-ramp to Route 16 eastbound does not have pedestrian signal heads and beacons utilizes older signal operating standards with flashing yellow and red for traffic and pedestrians. When the signal shows solid red for traffic, circulating traffic in the rotary sometimes stops which creates a safety issue. The east side of the circle is used by students traveling to school between Lower and Upper Broadway. A DCR crossing guard is present between 7:00 and 8:00 AM and 2:00 and 3:00 PM. Wheelchair ramps are missing. Image 10: Outdated Signal Page 11
Road Safety Audit Santilli Circle and Sweetser Circle Prepared by AECOM Lower Broadway West Heavy traffic in the morning approaching rotary results in backups into the rotary and vehicles stacking three lanes wide at time. This also exacerbates the difficulty of vehicles entering the rotary form Santilli Circle Connector. There are no pedestrian crosswalk signs. Wheelchair ramps are missing. Santilli Circle Connector The deflection angle for westbound traffic entering circle is too large to slow down vehicles. There are no pedestrian crosswalk signs. Image 11: No ADA Accommodations at Lower Broadway Approach Potential Safety Enhancements The Audit Team members offered potential safety enhancements that could be implemented to mitigate the safety related observations that were noted in the previous section. Audit Team members were encouraged to develop short, medium and long-term safety enhancements. Santilli Circle General Update all pedestrian signals to 16 heads with countdown signals and APS push buttons. Update wheelchair ramps to comply with ADA standards. Provide pedestrian crosswalk and advance warning signs at unsignalized crosswalks (see MUTCD Section 2C.50). Install roundabout directional arrow signs (see MUTCD Section 2B.43). Provide bicycle accommodations where feasible. Evaluate a cycle track on the northern portion of Route 16 and the northern section of the rotary. Provide yield lines for Mystic View Road and Santilli Circle Connector rotary approaches (see MUTCD 3C.04). Install an additional guide sign on the Route 16 eastbound approach to the rotary directing vehicles to Rt. 99. Any enhancements need to be coordinated with the planned improvements to the Wood Memorial Bridge located west of Santilli Circle. A long-term solution of grade separating Rt. 16 was discussed. Page 12
Road Safety Audit Santilli Circle and Sweetser Circle Prepared by AECOM Santilli Circle Connector Narrow roadway width by adding curb extensions at bus stop crosswalk to improve motorist visibility of pedestrians and encourage slower travel speeds approaching the rotary. Consider a rectangular rapid flashing beacon. Trim trees and vegetation to improve sight lines. Construct ADA compliant access between the MBTA bus stop on the north side and the Best Buy parking lot. Remove Yield sign on the eastbound departure from the rotary to Santilli Circle Connector. Provide guide sign from the circle northbound to Route 99 (see Image 3). Route 16 West For the westbound ramp approach from the rotary, evaluate replace the two overhead and one post-mounted green signal arrows with yellow flashing beacons. Repair post-mounted signal so it is operable. It is noted that the DCR representative called to repair this signal at time of the Audit. Narrow or restripe the westbound ramp approach to one lane by reducing pavement width. This will reduce the high number of rear-end crashes. Perform an analysis to evaluate the benefits of having the ramp movement and the Route 16 westbound through movement operate as separate signal phases. Replace the lane drop sign with a lane merge sign on the gore between the on ramp and Route 16 westbound mainline. Evaluate if the eastbound right turn slip lane can be eliminated. Right turning traffic would then use the eastbound right turn lane at the intersection. This would reduce vehicle speeds approaching Mystic View Road and eliminate the existing weave. It would also allow for widening the existing sidewalk on the west side of the rotary. Repair pedestrian push button at the Route 16 eastbound right turn slip ramp crosswalk. It is noted that the DCR representative called to repair this signal at time of the Audit. Evaluate that this signal could operate on a pre-emption mode for pedestrians. Evaluate pedestrian signal times and adjust as necessary so adequate crossing time is provided across Route 16 west of the circle. Provide two green forward arrow indications for the rotary movement southbound. Mystic View Road/Gateway Center Evaluate the feasibility of new crosswalk across Mystic View Road. This may include options for a rectangular rapid flashing beacon and curb extensions. Coordination will be needed with Gateway Center. Route 16 East Install Signal Red Ahead When Flashing sign for Route 16 westbound approaching the rotary. This will alert motorists to stopped vehicles ahead as they approach around the horizontal curve. Install a new signal head on the left side facing the westbound Route 16 approach to the rotary. Remove vegetation on the Route 16 westbound approach to the circle to improve sight lines. Provide lane designation pavement markings in the rotary for the northbound approach to Santilli Circle Connector. Provide three green forward arrow indications for the rotary movement northbound. Provide lane designation pavement markings for the northbound rotary movements between Route 16 westbound and Santilli Circle Connector. Page 13
Road Safety Audit Santilli Circle and Sweetser Circle Prepared by AECOM Santilli Circle Interior Evaluate the feasibility of providing a sidewalk northeast-southwest through the circle. For longterm evaluate a pedestrian bridge across Route 16. Coordinate with the MBTA to determine if a bus route can serve Gateway Center to reduce the number of pedestrian crossing the rotary. Sweetser Circle General Provide lane marking delineation and directional markings on approach lanes and within the rotary to define travel lanes and encourage slower vehicle speeds (see MUTCD Section 3C.02). Provide Keep Right sign on splitter island at approaches to the rotary. Update wheelchair ramps to comply with ADA standards. Provide pedestrian crosswalk and advance warning signs at unsignalized crosswalks. Move pedestrian crosswalks back from the edge of circulatory roadway where feasible to prevent vehicles from stopping in the rotary (see MUTCD Section 3C.05). Provide bicycle accommodations where feasible. Provide yield lines for all rotary approaches (see MUTCD 3C.04). Long-term measure is to evaluate intersection reconfiguration including reducing circular diameter to modern roundabout standards Upper Broadway Trim trees and vegetation blocking yield and pedestrian crossing signs on southwest Broadway approach to rotary. Lower Broadway East Reprogram signal to discontinue flashing red and yellow mode. Replace 8 signal heads with 16 current standard. Long term measure is to replace with countdown signals. Re-orient crosswalk so that it is perpendicular with the roadway to allow for shorter crossing times and vehicles to stop outside of the rotary. Long-term measure is to widen sidewalks to provide separated bikeway (cycle track) or provide bicycle lanes separated by barrier. Replace guardrail on inside circle of east bridge structure with pipe rail. Santilli Circle Connector Realign on-ramps to provide sharper angle of deflection to slow vehicles entering the circle. Page 14
Road Safety Audit Santilli Circle and Sweetser Circle Prepared by AECOM Summary of Road Safety Audit After the site visit, the RSA participants returned to discuss the safety issues and consider various improvements. The participants were encouraged to consider both short and long-term improvements for each of the existing safety issues. Each improvement considered has been categorized as short-term, midterm, or long-term based on the definitions shown in Table 2. Additionally, a cost category has been assigned to each improvement based on the parameters set forth in Table 2. Table 2: Estimated Time Frame and Costs Breakdown Time Frame Costs Short-Term <1 Year Low <$10,000 Mid-Term 1-3 Years Medium $10,001-$50,000 Long-Term >3 Years High >$50,000 Each safety issue and potential safety enhancement was discussed during the audit. Tables 3 and 4 describe the potential safety enhancement, potential safety payoff, the estimated time frame for completion, the estimated construction cost, and the responsible agency for safety issue for Santilli Circle and Sweetser Circle. Page 15
Road Safety Audit Santilli Circle and Sweetser Circle Prepared by AECOM Table 3: Potential Safety Enhancement Summary Santilli Circle Safety Issue Potential Safety Enhancement Safety Payoff Time Frame Cost Responsible Agency Traffic Signal Update all outdated pedestrian signals and APS Low Mid-term Medium DCR Equipment Traffic Signal Equipment Traffic Signal Equipment Repair broken pedestrian button at Rt. 16 eastbound right turn slip ramp Install new signal head on the left side facing the westbound Rt. 16 approach to the circle Low Short-term Low DCR Low Mid-term Low DCR ADA Accessibility Upgrade all non ADA compliant wheelchair Low Mid-term Medium DCR ramps to current standards Signage Install new crosswalk signs at crosswalks Low Short-term Low DCR Signage Signage Signage Signage Signage Pedestrian and Bicycle Accommodation Pedestrian and Bicycle Accommodation Install new roundabout and Yield signs and Yield pavement markings for the unsignalized approaches of Mystic View Road and Santilli Circle Connector Provide additional guide signs directing motorists to roadways at rotary for northbound approach to Rt. 99 Remove Yield sign on Santilli Circle Connector eastbound departure Replace lane drop sign for westbound ramp approach to Rt. 16 with merge sign Install new right turn lane sign for eastbound Rt. 16 onto the Rotary and Rt. 99 Consider providing a cycle track on the northern portion of Rt. 16 and rotary Consider narrowing roadway by adding curb extensions to shorten long crosswalk at Santilli Circle and or provide RRFB. Trim vegetation Medium Short-term Medium DCR Medium Mid-term Medium DCR Low Short-term Low DCR Medium Short-term Low DCR Low Mid-term Low DCR Medium Long-Term High DCR Medium Mid-term Medium DCR Page 16
Road Safety Audit Santilli Circle and Sweetser Circle Prepared by AECOM Safety Issue Potential Safety Enhancement Safety Payoff Time Frame Cost Responsible Agency Pedestrian and Bicycle Accommodation Construct ADA- compliant pedestrian connection between MBTA bus stop and Best Buy Low Mid-term Medium DCR Pedestrian and Bicycle Accommodation Pedestrian and Bicycle Accommodation Pedestrian and Bicycle Accommodation Pedestrian and Bicycle Accommodation Traffic Control Traffic Control Traffic Control Traffic Control Traffic Control Traffic Control Traffic Control Pavement Markings Evaluate feasibility of providing a new sidewalk and crossings to prevent pedestrian crossing the circle via an informal worn path in the grass Evaluate a new crosswalk across Mystic View Road including RRFB. Medium Short-term Medium DCR High Mid-term Medium DCR Evaluate a pedestrian bridge across Route 16 High Long-term High MassDOT Coordinate with MBTA to determine if a bus route can serve Gateway Center to reduce pedestrians crossing rotary Evaluate long-term solution of grade separating Rt. 16 Evaluate replacing green arrows with flashing yellows and repair post-mounted signal on the westbound ramp approach to Rt. 16 Evaluate and re-time pedestrian crossing times to meet current standards as necessary Provide two green arrow beacons for signal heads for rotary movement southbound Provide three green arrows on signals to indicate traffic movements for northbound rotary approach Reduce pavement width to one lane on the westbound ramp approach to Rt. 16 Remove no left turn sign for northbound approach within the rotary Provide lane designation pavement markings for one lane for the northbound approach to the rotary and between Rt. 16 and Santilli Circle Connector High Mid-Term Medium MassDOT High Long-term High MassDOT Medium Mid-term Medium DCR Medium Short-term Low DCR Medium Mid-term Low DCR High Mid-term Medium DCR High Long-term High DCR Low Low Low DCR Low Short-term Low DCR Page 17
Road Safety Audit Santilli Circle and Sweetser Circle Prepared by AECOM Safety Issue Potential Safety Enhancement Safety Payoff Time Frame Cost Responsible Agency Signal Phasing Analyze operations to provide separate signal High Short-term Low DCR phases for Rt. 16 westbound and westbound ramp approach, understanding it may increase queuing within the rotary Ramp Weaving Issues Evaluate eliminating right turn slip ramp for High Short-term Low DCR eastbound right turn onto southbound rotary Sight Distance Install Signal Red Ahead When Flashing sign and remove/trim vegetation to improve sight distance issues for westbound motorists approaching circle High Mid-term Medium DCR Page 18
Road Safety Audit Santilli Circle and Sweetser Circle Prepared by AECOM Table 4: Potential Safety Enhancement Summary Sweetser Circle Safety Issue Potential Safety Enhancement Safety Payoff Time Frame Cost Responsible Agency Traffic Signal Replace pedestrian signal on Rt. 16 Medium Mid-term Mediu DCR Equipment eastbound on-ramp with new standard equipment m ADA Accessibility Upgrade all non-ada compliant wheelchair Low Mid-term Mediu DCR ramps to current standards m Signage Install new crosswalk signs at crosswalks Low Short-term Low DCR Signage Install standard signage for rotary including Medium Short-term Low DCR chevron entrance signs, advance warning signs, combined one way/no left turn and keep right signs on islands and Yield pavement markings Signage Trim vegetation that blocks yield and Medium Short-term Low DCR Pedestrian and Bicycle Accommodation Pedestrian and Bicycle Accommodation Pedestrian and Bicycle Accommodation Pavement Markings Intersection configuration Guardrail Ramp crosswalk signs on northeast approach Consider providing a separated bicycle path Medium Long-Term High DCR Relocate crosswalks if possible to be more visible to motorists Re-orient crosswalk to be perpendicular on Lower Broadway approach Provide lane markings in rotary and on approaches Evaluate alternatives to provide safer configuration in long term including reducing circular diameter to modern roundabout standards Repair guardrail on inside circle east of bridge Close off the Bow Street northbound ramp to Lower Broadway or realign it as 90 degree T- intersection Medium Mid-term Mediu m DCR Medium Mid-term Low DCR Low Short-term Low DCR High Mid-term Low DCR Low Short-term Low MassDOT Medium Long-term High Everett/MassDOT Page 19
Road Safety Audit Santilli Circle and Sweetser Circle Prepared by AECOM Safety Issue Potential Safety Enhancement Safety Payoff Time Frame Cost Responsible Agency Ramp Realign deflection angle for rotary Medium Long-term High DCR approaches to reduce vehicle speed Page 20
Appendix A. RSA Meeting Agenda
Appendix B. RSA Audit Team Contact List
Participating Audit Team Members Date: January 28, 2016 Location: Everett City Hall, MA Audit Team Members Agency/Affiliation Email Address Phone Number Derek Caldwell MassDOT District 4 Traffic Derek.Caldwell@state.ma.us 781-641-8318 John Mastera MassDOT - Highway Safety John.Mastera@state.ma.us 857-368-9648 Timothy Paris MassDOT District 4 Projects Timothy.Paris@dot.ma.state.us 781-641-8325 Mark Abbott Boston MPO/CTPS Mabbott@ctps.org 857-702-3641 David Loutzenheiser MAPC Dloutzenheiser@mapc.org 617-933-0743 Val Soroka DCR Val.Soroka@state.ma.us 617-626-4942 Jay Monty City of Everett Jay.Monty@ci.everett.ma.us 617-544-6033 Julius Ofurie City of Everett Julius.ofurie@ci.everett.ma.us 617-394-2251 Al Carrier Wynn Design and acarrier@wynndevelopment.co Development m 857-770-7823 Chris Chaffee AECOM Chris.Chaffee@aecom.com 978-905-2125 Dirk Grotenhuis AECOM Dirk.Grotenhuis@aecom.com 978-905-2303 Jeff Maxtutis AECOM Jeffrey.Maxtutis@aecom.com 978-905-2309
Appendix C. Detailed Crash Data
Crash Data Summary Table Santilli Circle (Route 16 - Revere Beach Parkway) January 2011 - December 2013 Crash Diagram Ref # Crash Date Crash Day Time of Day Manner of Collision Light Condition Weather Condition Road Surface Driver Contributing Code Ages Comments EB Vehicle turning left unto Kelvin St hit by WB vehicle. WB vehicle does 1 1/2/2011 Sunday 7:12 PM Angle Roadway Rain Wet No Improper Driving 75 N/A not stop. 2 1/11/2011 Tuesday 2:04 PM Angle Daylight Clear Dry Disregarded traffic signs, signals, road markings 76 73 Vehicle travelling WB ran a red light and struck vehicle travelling NB 3 1/18/2011 Tuesday 11:53 AM Rear End Daylight Snow Snow Followed too closely 38 28 Vehicle 2 stopped on ramp to RT. 16W and vehicle 1 tried to stop, but slid due to snow. 4 2/5/2011 Saturday 11:49 PM Rear End Roadway N/A Wet No Improper Driving 28 N/A Vehicles traveling onto Rt.16 W. Vehicle 3 was hit by vehicle 2, which 41 caused it to hit vehicle 1. Vehicle 2 fled. 5 7/19/2011 Saturday 6:30 PM Rear End Daylight Clear Dry Inattention 37 30 Vehicles traveling WB. Driver of vehicle 1 was reading a text message and rear ends vehicle 2. 6 8/14/2011 Sunday 12:54 PM Rear End Daylight N/A Dry Followed too closely 45 81 Vehicles travelling WB on Rt.16. Vehicle 3 was follwing vehicle 1 too closely and when it came to stop hit back of vehicle 1, causing it to rear 23 end vehicle 2. 7 8/17/2011 Wednesday 3:55 PM Rear End Daylight N/A Dry N/A, No improper driving 25 41 Traveling EB, vehicle 2 stopped and vehicle 1 is unable to stop and struck vehicle 1 in rear. 8 9/12/2011 Monday 11:00 AM Sideswipe, same direction Daylight N/A Dry Inattention 58 48 Traveling WB, vehicle 1 attempted to make right hand turn from middle lane and struck vehicle 2. 9 9/27/2011 Tuesday 11:49 AM Rear End Daylight Clear Dry Followed too closely 21 49 Traveling EB, police vehicle entered intersection, which cause vehicle 1 to break quickly leading to vehicle 2 striking it. 10 10/10/2011 Monday 1:30 AM Sideswipe, same direction Roadway N/A Dry Made an improper turn 26 30 Traveling WB, vehicle 1 struck the front of vehicle 2 after making improper left turn and then fled. 11 10/22/2011 Saturday 12:33 PM Angle Daylight Clear Dry Disregarded traffic signs, signals, road markings 53 58 Vehicle 1 traveling EB and vehicle 2 traveling NB. Vehicle 1 was struck in the front left by vehicle 2 after it ran red light. 12 11/18/2011 Friday 7:00 PM Rear End Roadway N/A Wet Inattention 30 46 Vehicle 1 had spare tire on car, which effected abaility to brake and 38 contributed to accident. 13 11/30/2011 Wednesday 1:58 PM Angle Daylight Cloudy Dry Disregarded traffic signs, signals, road markings 72 64 Vehicle 1 traveling EB, vehicles 2 & 3 traveling NB. Vehicles 2 and 3 had 45 green light and vehicle 1 ran red light and struck vehicle 2. 14 12/6/2011 Tuesday 1:40 PM Rear End Daylight N/A Dry Made an improper turn & followed too closely 39 39 Traveling WB. Vehicle 1 made an improper left turn, which cause vehicle 31 2 to strike it and led to vehicle 3 striking vehicle 2 15 12/21/2011 Wednesday 3:55 PM Single vehicle crash Daylight N/A Dry N/A 39 Pedestrian stated they were struck by vehicle, but when plates were run, did not come back to any vehicle. 16 1/3/2012 Tuesday 4:50 PM Rear End Roadway Clear Dry Inattention 50 33 Traveling SB and merging onto Rt 16 WB. Vehicle 2 had to stop its forward movement due to emergency vehicle, which caused vehicle 1 to strike it. 17 1/23/2012 Monday 5:40 PM Sideswipe, same direction Roadway N/A Wet Disregarded traffic signs, signals, road markings & inattention 62 N/A Traveling EB on Rt16. Vehicle 1 stated she was struck from behind, but vehicle 2 stated it was struck from behind by vehicle 1, which caused it 58 to strike vehicle 3. 18 2/18/2012 Saturday 12:50 PM Rear End Daylight Clear Dry Other Improper action 27 40 Traveling EB on Rt 16. Vehicle 1 stated it could not stop in time when vehicle 2 stopped for yellow light. 19 3/16/2012 Friday 4:26 PM Sideswipe, same direction Daylight Clear Dry Failed to yield right of way 27 43 Traveling on Rt16 WB just west of Santilli Circle, vehicle 1 was struck in the front left by vehicle 2 and vehicle 2 fled. 20 3/18/2012 Sunday 3:40 PM Angle Daylight Clear Dry Disregarded traffic signs, signals, road markings 38 30 21 3/25/2012 Sunday 12:15 PM Rear End Daylight Cloudy Dry Other Improper action 44 46 22 4/2/2012 Monday 12:55 AM Single vehicle crash Roadway N/A Dry Distracted 33 Operating vehicle in erratic, reckless, careless, negligent or 23 4/4/2012 Wednesday 5:29 PM Single vehicle crash Daylight Clear Dry aggressive manner 74 24 4/6/2012 Friday 6:00 PM Head On Daylight Clear Dry Failed to yield right of way 26 29 25 4/26/2012 Thursday 3:15 PM Angle Daylight Clear Dry Failed to yield right of way 49 22 Vehicle 1 was travelling EB and vehicle 2 SB on Santilli Hwy through an intersection when vehicle 2 ran red light and struck the front of the vehicle. Both sustain major damage. Traveling onto Rt 16 EB, vehicle 2 yielded to traffic and vehicle 1 did not yield and rear ended vehicle 2 Traveling WB on Rt 16 and Santilli Circle, driver was distracted and did not negotiate the bend of the road. Traveling on Rt16 EB, driver lost control of vehicle and travelled offroad prior to striking a tree. Traveling AB on Kelvin Street, vehicle 1 failed to yield to oncoming traffic and struck vehicle 2. Traveling Rt 16 WB, vehicle 1 struck left rear of vehicle 2 where road narrows. Traveling on Mystic View Rd where it merges with Rt 16 EB, Vehicle 1 26 5/12/2012 Saturday 12:50 PM Rear End Daylight Clear Dry N/A N/A N/A N/A struck vehicle 2 in the rear, which caused it to strike vehicle 3.
Crash Data Summary Table Santilli Circle (Route 16 - Revere Beach Parkway) January 2011 - December 2013 Crash Diagram Ref # Crash Date Crash Day Time of Day Manner of Collision Light Condition Weather Condition Road Surface Driver Contributing Code Ages Comments Traveling in the on ramp from Santilli Circle to Rt16 WB, roadway was wet due to sprinklers on side of road and vehicle 1 could not stop before 27 5/24/2012 Thursday 6:50 PM Rear End Daylight Clear Wet N/A N/A N/A striking vehicle 2. 28 6/7/2012 Thursday 6:45 AM Sideswipe, same direction Daylight Cloudy Dry N/A N/A N/A EB on Rt 16 in East Everett, vehicle 2 was changing lanes and struck the right side of vehicle 1. 29 6/22/2012 Friday 7:20 PM Rear End Dusk Rain Wet Driving too fast for conditions 30 66 EB on Rt 16, vehicle 1 was ynable to stop and struck vehicle 2 in the back. 30 7/10/2012 Tuesday 5:15 PM Angle Daylight Clear Dry Inattention 71 37 31 8/1/2012 Wednesday 3:15 AM Single vehicle crash 32 8/3/2012 Friday 3:05 PM Rear End Daylight Clear Dry Roadway Rain Wet No Improper Driving 26 Disregarded traffic signs, signals, road markings 49 27 Traveling WB on Rt 16 at Santilli Circle, vehicle was travelling north when cyclist did not stop and struck the right side of the vehicle. Traveling on Rt16 WB, patrolman put lights on when seeing vehicle traveling at high rate of speed and vehicle hit curb then guardrail. Traveling SB at Santilli Circle, vehicle 2 was proceeding through intersection with green light, when vehicle 1 ran red light and struck front of vehicle 2. 33 9/4/2012 Tuesday 10:25 PM Sideswipe, opposite direction Roadway Rain Wet Swerving or avoiding due to wind, slippery surface, vehicle, object, non-motorist in roadway, etc 32 22 Traveling on Rt 16E at Santilli Circle, in the wet conditions, vehicle 1 lost control and side swiped vehicle 2 causing damage to both vehicles. 34 9/4/2012 Tuesday 1:53 PM Sideswipe, same direction Daylight Clear Dry Inattention 71 28 35 9/10/2012 Monday 4:10 PM Sideswipe, same direction Daylight Clear Dry No Improper Driving 68 63 36 9/13/2012 Thursday 8:25 AM Angle Daylight Clear Dry Other Improper action 34 57 37 9/30/2012 Sunday 6:40 PM Angle Roadway Clear Dry Disregarded traffic signs, signals, road markings 28 33 38 11/4/2012 Sunday 7:24 AM Rear End Daylight Clear Dry Followed too closely 70 22 Operating vehicle in erratic, reckless, careless, negligent or 39 11/8/2012 Thursday 8:42 PM Rear End Roadway N/A Dry aggressive manner 58 27 Traveling on Rt 16 E at Santilli Circle, vehicle 1 did not yield while it was changing lanes and struck vehicle 2. Driver of vehicle 1 took blame. Travelling onto Rt16 EB, east of Santilli Circle, vehicle 1 did not yield while it was changing lanes and struck vehicle 2. Travelling from Krystal Poirrier Way onto Kelvin Street, vehicle 1 was illegally passing bus on right when it was struck by vehicle 2, which was turning left in front of the bus. Traveling SB on Santilli Circle at Rt16 WB, vehicle 2 was proceeding through intersection with green light, when vehicle 1 ran red light and struck front of vehicle 2. Travelling WB on Rt 16, vehicle 1 began going through the green light and was struck from behind by vehicle 2 Travelling WB on Rt 16 at Santilli Circle, vehicle 2 was stopped at red light and vehicle 1 did not stop and rear ended vehicle 2. Travelling WB on Rt 16 at Santilli Circle, vehicle 3 failed to brake and hit 40 12/3/2012 Monday 6:35 AM Rear End Dawn Clear Dry N/A 44 43 42 the back of vehicle 2, which was then pushed into the back of vehicle 1. 41 12/16/2012 Sunday 6:30 PM Rear End Traveling NB at Santilli Circle, vehicle 3 failed to brake and hit the back of Roadway Snow Wet Driving too fast for conditions 28 57 21 vehicle 2, which was then pushed into the back of vehicle 1. 42 12/19/2012 Wednesday 7:40 PM Angle Roadway Clear Dry Failure to keep in proper lane or running off road 42 43 Travelling EB on Rt 16, vehicle 1 was in middle lane when it attempted illegal left turn, at which point it was struck by vehicle 2. 43 12/28/2012 Friday 2:00 PM Rear End Daylight Clear Dry Failed to yield right of way N/A 79 Travelling EB on Rt 16, vehicle 2 could not stop for the red light and struck vehicle 1, which was stopped at the light. 44 1/4/2013 Friday 7:43 PM Rear End Roadway Clear Dry Followed too closely 25 23 Travelling onto Rt 16 WB, vehicle 1 was yielding, when it was struck in the rear by vehicle 2. 45 1/5/2013 Saturday 2:22 PM Rear End Daylight N/A Dry Inattention 31 27 Travelling EB on Rt 16, vehicle 1 was yielding, when it was struck in the rear by vehicle 2. 46 1/12/2013 Saturday 3:30 PM Rear End Daylight Clear Dry Followed too closely 28 31 Travelling WB on Santilli Highway Connector, vehicle 1 rear ended vehicle 2 and driver of vehicle 1 was unlicensed. 47 1/25/2013 Friday 11:55 PM Single Vehicle Crash Roadway Snow Snow Over-correcting/over-steering 33 Travelling WB at Rt 16 and Santilli Circle, no other info included. 48 1/26/2013 Saturday 10:30 AM Rear End Daylight Clear Other No Improper Driving 44 20 Travelling onto Rt 16 WB, vehicle 1 was yielding, when it was struck in the rear by vehicle 2. 49 2/8/2013 Friday 10:45 AM Rear End Daylight Cloudy Dry Followed too closely 32 41 Travelling onto Rt 16 WB, vehicle 1 was yielding, when it was struck in the rear by vehicle 2.
Crash Data Summary Table Santilli Circle (Route 16 - Revere Beach Parkway) January 2011 - December 2013 Crash Diagram Ref # Crash Date Crash Day Time of Day Manner of Collision Light Condition Weather Condition Road Surface Driver Contributing Code Ages Comments Travelling from Santilli Circle onto Mystic View Rd, the two vehicles has a 50 2/20/2013 Wednesday 10:20 AM Angle Daylight Cloudy Dry N/A 47 N/A front end collision 51 2/26/2013 Tuesday 2:50 PM Sideswipe, same direction Daylight Clear Dry Made an improper turn 49 40 Travelling from Santilli Circle onto Gateway Center, two vehicles had a sideswipe collision 52 3/18/2013 Monday 5:25 PM Single vehicle crash Dusk Clear Dry No Improper Driving 23 53 3/27/2013 Wednesday 1:45 PM Angle Daylight Cloudy Dry N/A 26 56 54 3/31/2013 Sunday 12:06 AM Angle Roadway Clear Dry N/A 49 69 Failure to keep in proper lane or 55 4/18/2013 Thursday 2:08 PM Sideswipe, same direction Daylight N/A Dry running off road 87 30 56 4/18/2013 Thursday 6:35 AM Rear End Daylight Clear Dry Followed too closely 43 37 Travelling EB on Rt 16, vehicle 1 was forced to swerve to avoid hitting another car and hit curb causing it heavy front end damage. Travelling from Santilli Circle, vehicle 1 was entering Mystic View Rd, when it was struck by vehicle 2 and was pushed into left curb. Travelling NB through Santilli Circle and WB on Rt 16, both drivers claimed to have green light when vehicle 1 struck the fron left side of vehicle 2. Travelling around Santilli Circle (Best Buy to the right), vehicle 1 attempted to cross lanes and struck vehicle 2 Travelling onto Rt 16 WB. vehicle 1 was on the ramp to enter Rt. 16W, when struck by vehicle 2 57 5/21/2013 Tuesday 3:25 PM Rear End Daylight Clear Dry Followed too closely 25 51 Travelling WB on Rt 16, vehicle 2 failed to yield and struck vehicle 1. 58 5/22/2013 Wednesday 7:08 AM Rear End Daylight Clear Dry Inattention 22 30 Entering rotary on Rt 16 WB at Santilli Circle, vehicle 2 was stopped in traffic and was struck, in the rear, by vehicle 1 59 5/22/2013 Wednesday 6:10 PM Rear End Daylight Clear Dry Followed too closely 52 29 Travelling EB on Rt 16, vehicle 2 was stopped in traffic and was struck, in the rear, by vehicle 1 60 5/24/2013 Friday 12:30 PM Angle Daylight Clear Dry Failure to keep in proper lane or running off road 26 51 Vehicle 1 travelling EB on Route 16 and waiting to make a left-turn onto Kelvin St. Vehicle 2 (Bicycle) struck the right side of vehicle 1 after failing to stop or slow down at Kelvin St. 61 6/21/2013 Friday 7:27 AM Angle Daylight Clear Dry No Improper Driving 45 N/A At Santilli Circle and Rt 16 WB, vehicle 1 struck the right side of vehicle 2, vehicle 1 then left scene. 62 6/21/2013 Friday 7:45 AM Angle Daylight Clear Dry Made improper turn 50 26 63 6/26/2013 Wednesday 7:52 AM Rear End Daylight N/A Dry No Improper Driving 53 34 Travelling from Rt 16 onto Mystic View Rd, vehicle 1 struck the right side of vehicle 2 when vehicle 2 was trying to make illegal U-Turn. At Route 16 Eb/Santilli Circle, vehicle 1 slowed in circle and vehicle 2 did not apply brakes hard enough, leading to minor collision 64 7/12/2013 Friday 10:27 AM Rear End Daylight Clear Dry Followed too closely 24 30 Travelling onto Rt 16 EB, vehicle 1 struck vehicle 2 in rear 65 7/22/2013 Monday 8:50 PM Rear End Roadway Cloudy Wet No Improper Driving 59 28 Travelling on Rt 16 WB at East Santilli Circle, vehicle 3 failed to brake and hit the back of vehicle 2, which was then pushed into the back of vehicle 20 1. 66 8/5/2013 Monday 2:15 PM Rear End Daylight Cloudy Dry Followed too closely 39 39 Travelling on Rt 16 EB, vehicle 2 failed to yield and struck vehicle 1. 67 8/6/2013 Tuesday 5:30 PM Rear End Daylight Clear Dry Other Improper action 49, 29 52, 23 Travelling on Rt 16 EB, vehicle 1 hit vehicle 2 in the rear, which caused 48 chain reaction of 5 car pile up 68 8/20/2013 Tuesday 9:40 PM Head On Roadway Clear Dry Disregarded traffic signs, signals, road markings 24 27 Travelling on Rt 16 at Santilli Circle, vehicle 1 ran red light and struck vehicle 2. 69 8/25/2013 Sunday 11:14 AM Angle Daylight Clear Dry Other Improper action 28 24 Travelling on Santilli highway prior to Santilli circle, operator of vehicle 1 was on drugs and nodded off prior to running stop sign and striking vehicle 2 70 8/28/2013 Wednesday 12:15 PM Angle Daylight Clear Dry N/A 75 52 Travelling on Rt 16 WB at Santilli Circle, vehicle 2, a large truck, struck vehicle 1 in front side bumper. No witnesses. 71 9/13/2013 Friday 9:15 PM Rear End Roadway Clear Dry Followed too closely 18 32 Travelling on Rt 16 WB at Santilli Circle, vehicle 2 slowed for a yield sign and vehicle 1 did not break and struck vehicle 2 in the rear. 72 9/28/2013 Saturday 2:08 PM Rear End Daylight N/A Dry Other Improper action 39 26 73 10/12/2013 Saturday 6:40 PM Sideswipe, same direction Dusk Clear/Rain Wet N/A, No improper driving 21 31 Travelling on Krystal Poirier Roadway with Kelvin St to the left, vehicle 1 was checking their GPS, looked up, but could not brake in time. Travelling on Rt 16 EB at Santilli Circle, vehicle 1 struck vehicle 2 causing it to spin out, across many lanes.