Pedestrian Crash Types
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1 North Carolina Pedestrian Crash Types Prepared for The North Carolina Department of Transportation Division of Bicycle and Pedestrian Transportation Prepared by The University of North Carolina Highway Safety Research Center September 2012
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3 Contents Background... 5 Results... 6 Pedestrian Location... 6 Pedestrian Position... 8 Individual Crash Types Grouped Crash Types Age Group and Crash Group Involvement References... 23
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5 Background A total of 12,544 collisions between motor vehicles and pedestrians were reported in North Carolina over the five year period of 2006 to On average, 168 pedestrians were killed and 187 were reported seriously injured in collisions each year. 1 The information from the state crash report forms is stored in electronic files. Analysis of these data can provide information on where pedestrian-motor vehicle crashes occur (city street, two-lane roadway, intersection location, etc.), when they occur (time of day, day of week, etc.), and to whom they occur (age of victim, gender, level of impairment, etc.), but can provide very little information about the actual sequence of events leading to the crash. The development of effective countermeasures to help prevent crashes and reduce the severity of these crashes is hindered by insufficient detail about the events of pedestrian-related crashes in typical electronic crash databases. To address this situation, the National Highway Traffic Safety Administration (NHTSA) developed a system of typing pedestrian and bicycle crashes. Each identified crash type is defined by a specific sequence of events, and each has precipitating actions, predisposing factors, and characteristic populations and/or locations that can be targeted for interventions. The original pedestrian crash typology was developed and applied during the early 1970 s (Snyder and Knoblauch, 1971; Knoblauch, 1977; Knoblauch, Moore and Schmitz, 1978). Cross and Fisher (1977) later developed a similar typology for bicycle crashes. Harkey, Mekemson, Chen, and Krull (2000) created the Pedestrian and Bicycle Crash Analysis Tool (PBCAT), interactive software that enables both pedestrian and bicycle crashes to be easily and quickly typed by answering a series of on-screen questions. PBCAT version 2 was released in 2006 and is available for free download (Harkey, Tsai, Thomas, and Hunter, 2006). For more information on PBCAT and crash typing, including detailed descriptions and images of typical crash scenarios, see: This report summarizes pedestrian-motor vehicle crash types that have been coded for five years of North Carolina police-reported data. UNC Highway Safety Research Center staff used PBCAT software to add a specific crash type, and information on where the crash occurred and the pedestrian s position prior to the crash, to the data for each pedestrian-motor vehicle crash for which a standard police report form was available. For more information on pedestrian, roadway and environmental factors in NC pedestrian crashes, see the Pedestrian Crash Facts summary report. 1 The number of pedestrians killed and injured reflects only the first pedestrian reported on in the crash. A few crashes each year involve multiple pedestrians, and may include multiple injuries and fatalities. For example, in 2007, one collision resulted in 8 pedestrian fatalities. These circumstances are relatively rare, however, and in order not to over-represent the number of crashes, the data contained in this report account for only the first pedestrian, who was also verified as a pedestrian during review of the crash reports. 5
6 Results Pedestrian Location Almost half (46%) of all pedestrians involved in crashes in NC from were struck at Non-intersection roadway locations - that is, at midblock locations or segments (Table 1). These segments may include features such as driveway connections, bridges, or exit ramps. About one-fourth (23%) of all the pedestrian collisions occurred at an intersection including the crosswalk areas, or within 50 feet of an intersection (Intersection and Intersectionrelated. Another 30% were struck in Non-roadway locations, most often parking lots or public or private driveways. In 2009, the percentage of non-roadway crashes was 33%. If examining roadway-only crashes that occurred at known locations, the percentage at midblock locations was 66% with 34% occurring at or related to an intersection. Table 1. NC pedestrian crashes by location type. Crash Location Total Intersection Non-Intersection Non-Roadway Intersection-Related Unknown Total 1 Row percent of column total 2 Row total percent of total 3 Column total percent of total , Figure 1 shows how the proportion of location types vary from rural to urban crash locations in NC. Non-intersection crash locations make up 66% of the total pedestrian crashes in rural areas compared with 38% in urban areas, while non-roadway (parking lot crashes) are a lower percentage in rural areas. Proportions of crashes occurring at different location types may also vary across different towns and cities depending on how closelyspaced intersections are, type of infrastructure present, and other factors. 6
7 Figure 1. NC rural and urban crash percentages by location type, (n = 3,587 rural; 8,957 urban). In addition to greater numbers of crashes, the fatality rate is much higher for pedestrians struck along road sections (non-intersection locations) compared with intersections where speeds are typically slower, due to turns and other maneuvers. Pedestrian crashes at nonintersection locations were resulted in fatal injuries more than 11% of the time, while those occurring at intersections were fatal about 4% of the time. Crashes that occurred close to but not at an intersection resulted in fatal injuries about 6% of the time. Crashes at nonroadway locations resulted in fatalities about 2% of the time. The 652 fatal crashes at non-intersection locations represented 78% of all NC pedestrian fatal crashes (Figure 2). In part, the higher severity of crashes at non-intersection locations may also reflect pedestrians being struck at a higher frequency at non-intersection locations in rural areas where speeds are typically higher, roadways are often not lighted, and other factors. 7
8 Figure 2. NC killed and injured pedestrians by location type, Pedestrian Position Table 2 describes, for years 2007 through 2010, the pedestrian s position at the time of the crash. (These data were not captured prior to 2007). Over these four years 48% of pedestrians were in a regular traffic lane at the time they were struck. Another 25% were in parking lots or other non-roadway areas besides driveways or alleys, and 8% were crossing the street in a crosswalk (marked or implied) as best determined from diagrams and other information on the crash report forms. Smaller percentages of pedestrians struck were on driveways or alleys (5%); walking along the street on paved shoulders, bike lanes, or parking lanes (5%); on sidewalks or driveway crossings (3%); within the intersection proper (not in the crosswalk area 2%); or on unpaved areas alongside roadways (1%). 8
9 Table 2. Pedestrian position prior to the crash (not coded prior to 2007). Pedestrian Position Total Intersection Proper Crosswalk Area Travel Lane Paved Shoulder / Bike Lane / Parking Lane Sidewalk / Shared Use Path / Driveway Crossing Unpaved Right-of-Way Driveway / Alley Non-Roadway - Parking Lot / Other Other / Unknown Not Coded Total 1 Row percent of column total 2 Row total percent of total 3 Column total percent of total ,
10 Individual Crash Types Table 3 shows the number of each of 56 different individual crash types per year and in total for the years The crash type and related location and position information was developed by using PBCAT software to code the five years of crash data from copies of crash report forms. All of the 12,544 reported pedestrian-motor vehicle crashes were assigned crash types using the PBCAT software. Table 3 shows the many ways pedestrianmotor vehicle crashes can occur, including backing vehicles in parking lots, motorists turning across the paths of pedestrians, pedestrian dart-outs and dashes, pedestrians being struck while walking along the roadway, and many others. (Note that updated crash typing software was used beginning in 2006.) There is some year-to-year variability in the frequencies and proportions of each crash type, especially those with smaller numbers. Much of this variation is likely explained by chance. There was, however, a fairly substantial drop between 2008 to 2009 in the number and proportion of Walking Along Roadway With Traffic - From Behind type of crash while the numbers of Motor Vehicle Loss of Control showed an increase. The latter type involves motorists losing control due to drugs/ alcohol, surface irregularities or other factors and may include a road departure that results in a pedestrian walking along the roadway being struck. In the past two years, more crashes of this type have been coded that may formerly have been coded as Walking Along Roadway with Traffic From Behind. But, in general, the most frequent crash types tend to appear in fairly consistent proportions across years, although numbers may gradually decline or increase. Table 3. Individual NC pedestrian crash types by year. Crash Type Total Assault with Vehicle Dispute-Related Pedestrian on Vehicle Vehicle-Vehicle / Object Motor Vehicle Loss of Control Pedestrian Loss of Control Other Unusual Circumstances Backing Vehicle - Driveway
11 Crash Type Total Backing Vehicle - Driveway / Sidewalk Intersection Backing Vehicle - Roadway Backing Vehicle - Parking Lot Backing Vehicle - Other / Unknown Driverless Vehicle Disabled Vehicle-Related Emergency Vehicle-Related Play Vehicle-Related Working in Roadway Playing in Roadway Lying in Roadway Entering / Exiting Parked Vehicle Mailbox-Related Commercial Bus-Related School Bus-Related Ice Cream / Vendor Truck- Related Walking Along Roadway With Traffic - From Behind Walking Along Roadway With Traffic - From Front Walking Along Roadway Against Traffic - From Behind
12 Crash Type Total Walking Along Roadway Against Traffic - From Front Walking Along Roadway - Direction / Position Unknown Motorist Entering Driveway or Alley Motorist Exiting Driveway or Alley Driveway Crossing - Other / Unknown Waiting to Cross - Vehicle Turning Waiting to Cross - Vehicle Not Turning Waiting to Cross - Vehicle Action Unknown Standing in Roadway Walking in Roadway Non-Intersection - Other / Unknown Intersection - Other / Unknown Multiple Threat Trapped Dash Dart-Out Pedestrian Failed to Yield Motorist Failed to Yield Motorist Left Turn - Parallel Paths
13 Crash Type Total Motorist Left Turn - Perpendicular Paths Motorist Right Turn - Parallel Paths Motorist Right Turn on Red - Parallel Paths Motorist Right Turn on Red - Perpendicular Paths Motorist Right Turn - Perpendicular Paths Motorist Turn / Merge - Other / Unknown Off Roadway - Parking Lot Off Roadway - Other / Unknown Other - Unknown Location Crossing an Expressway ,544 Total Row percent of column (yearly) total 2 Row total percent of total 3 Column total percent of total Table 4 shows the top 12 most frequent individual crash types for all five years combined. This set of crash types accounted for 68% of reported pedestrian motor vehicle collisions statewide and thus could be a priority for treatment targeting, along with some closely-related crash types that also account for sizable numbers. 13
14 Table 4. Top 12 most frequent NC pedestrian crash types, Rank Crash Type Total Percent of NC Total #1 Pedestrian Failed to Yield #2 Off Roadway - Parking Lot #3 Backing Vehicle - Parking Lot #4 Dash #5 Walking Along Roadway With Traffic - From Behind #6 Motorist Left Turn - Parallel Paths #7 Off Roadway - Other / Unknown #8 Vehicle-Vehicle / Object #9 Motor Vehicle Loss of Control #10 Walking in Roadway #11 Dispute-Related #12 Motorist Failed to Yield Total top The most frequent crash types encompass a mix of typical roadway crashes involving pedestrians crossing the roadway (pedestrian failure to yield and dashes), walking along and in the roadway crashes, motorists striking pedestrians while making left turns, and offroadway and parking lot crashes including those with backing vehicles, dispute-related, and other weird types. The most frequent type, Pedestrian Failed to Yield, describes all instances where a pedestrian was attempting to cross the roadway and apparently failed to yield the right-of-way to a through (not turning) motorist, but did not clearly run into the street or dart-out from an obscured location. This crash type may include crashes where the pedestrian is trying to cross at a midblock, unmarked location and attempts to cross with an insufficient gap in traffic or fails to detect an approaching motorist (who could be speeding), or when a pedestrian crosses against a traffic signal at a signalized intersection or other controlled location as shown in the illustration. The crash type should not necessarily be construed to imply fault. Additionally, there are many locations on roadways across the State, in rural areas, but also in many urban and suburban areas, with no controlled crossings for long intervals, so pedestrians may need to cross at uncontrolled locations between junctions. Potential Countermeasures include providing marked crosswalks and enhancements (such as pedestrian signals, HAWK signals or rapid flash beacons, median yield signs) as needed at appropriate locations, lighting (if nighttime crashes are a problem), roadway narrowing, 14
15 lane reductions with and without provision of bike lanes, raised medians or median island to provide pedestrian refuge, traffic calming measures to slow traffic speeds, bulb-outs to increase pedestrian conspicuity and reduce crossing distance, pedestrian overpasses, signal timing changes, signs, bus stop relocation, and other measures depending on the location type (intersection or non-intersection), roadway, and other conditions present, and the needs of the users The Dash, #4 in the list, also describes a crossing situation, but one where the pedestrian runs into the roadway and is struck by a vehicle whose view of the pedestrian was not obviously obstructed just prior to the crash. Dashes may also occur at both midblock and intersection locations. Potential Countermeasures. Most of the countermeasures are similar to those for Pedestrian Failure to Yield. Additional educational measures targeting child pedestrians may be warranted. Access management treatments to restrict motorist through movements or reduce volumes on neighborhood streets and street furniture (plantings, barriers) may also be used to limit pedestrians from crossing or dashing out unexpectedly. A significant proportion of crashes occurred off the street and highway network. The second, third, and seventh most frequent crash types involving pedestrians occurred in Off-Roadway locations including Parking Lots, involved Backing Vehicles (mostly) in Parking Lots, or occurred on other Off-Roadway locations such as public and private driveways, unpaved areas and others. These three crash types accounted for nearly one-fifth (20%) of reported pedestrian crashes statewide. There are likely to be far more of these types of collisions that are not reported. Potential Countermeasures. Although measures are not typically within the purview of roadway authorities, parking lot design and design of pedestrian access from parking areas and from the street to businesses may improve conditions for pedestrians in off-road areas. Walking Along Roadway With Traffic - From Behind (#5 in list), involves, not surprisingly, pedestrians walking along an edge or shoulder of a roadway with their backs to traffic - typically in locations lacking sidewalks. These types of collisions also often occur at night. Situations in which the pedestrian is struck while walking along a roadway, but facing traffic, occur less frequently, and primarily involve the pedestrian being struck from the front (about 2% of total crashes; see Table 3). 15
16 Potential Countermeasures. Primary countermeasures for walking along or in the roadway crashes are to provide space for pedestrians to walk separate from the main motorized lanes, either sidewalks, separated paths, or wide shoulders, depending on the area type, speed of traffic, and other factors, and to provide lighting in areas with frequent nighttime pedestrian activity. Pedestrians should also be reminded about the importance of being conspicuous at night, and to walk facing traffic and move off the roadway when vehicles approach. Walking in the Roadway, #10 on the list, is somewhat different from above, in that it is not clear whether the pedestrian was walking along an edge, or crossing the roadway, or on any definite path, but appeared to be walking in the roadway in some fashion (not simply standing in the roadway) just prior to the collision. Another frequently occurring crash type involves Motorists making Left Turns and striking Parallel Path pedestrians (#6 in list). Crashes involving turning motorists occur at both intersections and at driveways or other junctions where pedestrians may be struck while crossing the driveway or while crossing the roadway at such locations. Over the entire State, 75% occurred at intersections. Pedestrians typically have the right-of-way at both driveways and intersections unless they are crossing against a signal. Potential Countermeasures include providing leading pedestrian intervals or providing a protected left turn phase separate from the pedestrians walk phase at signalized locations, roundabout intersection design, narrowing curb radii to slow turns, enhanced crosswalk markings, sidewalk level driveway crossings at driveways, and sign improvements (Yield to Pedestrians when Turning). Median barriers to restrict turning movements could be considered in some situations. Law enforcement and motorist education may also be needed. Weird crash types including Vehicle-Vehicle or Vehicle-Object and Dispute-Related were 8 th and 11th in frequency. The first describes situations in which the pedestrian is struck as the result of a vehicle first striking another vehicle or an object (and include some crashes involving motorists crashing into buildings). Dispute-related crashes are those in which a dispute or altercation between a driver and pedestrian resulted in a vehicle striking a pedestrian. These often occur during evening and night-time hours and more than half occurred at non-roadway locations such as parking lots and driveways. Potential Countermeasures. Apart from enhancing lighting and security in parking lots and other public vehicular areas, these may be difficult crash types to address except with enforcement and other behavioral countermeasures. Motorist Failed to Yield was 12 th on the list and like Pedestrian Failed to Yield involves motorists traveling straight through at either intersections or mid-block locations, but in this case the motorist apparently violated pedestrian right-of way. Most of these (77%) 16
17 occurred at intersections, whereas a majority of Pedestrian Failed to Yield occurred at midblock locations (67%). Many of the potential countermeasures are similar whether the motorist or pedestrian had legal right-of-way, and aim to encourage pedestrian crossing at safe locations and times, to ensure adequate sight distance and visibility between pedestrians and motorists, and to encourage motorist compliance with speed limits and traffic laws. Measures should minimize the chance of harm by providing sufficient crossing opportunities, encouraging safe speeds, and appropriate level of separation for the road type, speed and volume of users present. Many other crash types accounted for relatively small numbers. However, some of the other types may be amenable to treatment. In addition, a number of the individual crash types may benefit from the same or similar types of treatments. More discussion on potential countermeasures is provided in the next section. 17
18 Grouped Crash Types For ease in understanding and looking at associated factors, the 60 individual crash types from Table 1 have been grouped into 16 crash type groups (Table 5). For example, all Backing Vehicle crash types have been grouped into a single category, whether in a parking lot, on a driveway or street. Other similar types of crashes have been grouped as well. These combined crash type groups also show some variability by year, but less than individual crash types. Examining the totals across all years, crash type groups are shown in rank order of frequency. Table 5. NC pedestrian crash type groups, Rank Grouped Pedestrian Crash Type Total Percent of NC Total #1 Unusual Circumstances #2 Crossing Roadway - Vehicle Not Turning #3 Off Roadway #4 Backing Vehicle #5 Walking Along Roadway #6 Dash / Dart-Out #7 Crossing Roadway - Vehicle Turning #8 Pedestrian in Roadway - Circumstances Unknown #9 Other / Unknown - Insufficient Details #10 Multiple Threat / Trapped #11 Crossing Driveway or Alley #12 Working or Playing in Roadway #13 Bus-Related #14 Unique Midblock #15 Crossing Expressway #16 Waiting to Cross Total 12, Within groups of crash types, the combined Unusual Circumstances types together comprise one-fifth of all pedestrian crashes. A few of the specific crash types comprising this group involve vehicles striking other vehicles or objects before a pedestrian was struck, Dispute-Related, and Pedestrian on Vehicle that started moving. Other circumstances making up this group include Assault with Vehicle, crashes involving driverless vehicles, emergency vehicles, and those involving pedestrians standing or walking near disabled vehicles or those that were involved in prior crashes. Many of these unusual collision types can be difficult to address with specific engineering types of countermeasures, but may be amenable to improved lighting and security in parking areas (dispute and assault-related), 18
19 educating persons on safe behaviors following a crash, and enforcement and educational countermeasures aimed at reducing speeds and improving other behaviors. The second most frequent group, Crossing Roadway Vehicle Not Turning, is comprised of all situations in which a pedestrian is crossing the roadway (but not running or darting-out) and is struck by a through motorist and accounted for 17% of all crashes. Either participant could have failed to yield the right-of-way, but other factors may also be involved. About 60% of these crossing roadway collisions occurred at non-intersection (midblock) locations with about 40% at or related to an intersection. Potential Countermeasures. As mentioned under Pedestrian Failed to Yield individual crash type description, potential countermeasures include providing marked crosswalks and enhancements (such as pedestrian signals, advance stop bars, HAWK signals or rapid flash beacons, median yield signs) as needed at appropriate locations, lighting (if nighttime crashes are a problem), roadway narrowing, lane reductions with and without provision of bike lanes, raised medians or median island to provide pedestrian refuge, traffic calming measures, bulb-outs to increase conspicuity, pedestrian overpasses, signal timing changes, signs, bus stop relocation, and other measures depending on the location type (intersection or non-intersection), roadway, and other conditions present, and the needs of the users. Off-roadway crashes, the third most frequent crash group, accounted for 13% of pedestrian crashes statewide. A majority of these crashes (82%) occur in parking lots, but this crash group also includes reported crashes that occur in a variety of off-roadway locations such as driveways. Backing vehicle, the fourth most common group of crashes (11%), involve a backing vehicle striking a pedestrian, regardless of the location of the event (parking lot, driveway, roadway, etc.). As mentioned previously, a majority of backing vehicle crashes do, however, also occur in parking lots or driveways. Potential Countermeasures for backing vehicle and off-roadway crashes could include improved parking area and driveway design. In-vehicle technologies and warning-devices have potential for reducing these crash types. In addition, caregivers need to ensure that young children, who are especially vulnerable to both parking lot and backing vehicle crashes, are under supervision at all times when near cars or traffic areas. Walking along roadway crashes (#5 on the list), accounted for another 9% of pedestrian collisions in NC, and as mentioned previously, most often involve pedestrians struck from the rear while walking in the same direction as traffic, but can also involve pedestrians walking against traffic and being struck from the front, or other walking along roadway situations. These kinds of collisions usually occur where sidewalks (or other space for pedestrians to walk) are lacking, and often at night when visibility is poor. Nearly 58% of these collisions involved pedestrians walking in a traffic lane; 21% involved pedestrians walking along a paved or unpaved shoulder, or on a driveway or alley crossing, while the rest were at unknown positions. Potential Countermeasures include providing sidewalks or, in rural areas, paved shoulders or paths where pedestrians can walk. Lighting enhancements could be considered in areas with significant pedestrian (and/or bicyclist) activity. Education includes teaching children 19
20 and adults to use conspicuity aids (lights and reflective gear) at night, and generally, to walk facing traffic in locations that lack sidewalks or off-road paths and to move off the roadway as needed. There may sometimes be obstacles to crossing the roadway (and an increase in crossing exposure) in order for pedestrians to always walk facing traffic in locations that lack sidewalks or off-road paths, so this should be considered when prioritizing areas for treatment. The Dash / Dart-Out group (#6 in rank; 8%) also crashes in which the pedestrian is struck by a through motor vehicle, but involves situations in which the pedestrian runs into the roadway (dash) or walks or runs into the roadway and is struck by a vehicle whose view of the pedestrian is blocked until an instant before the crash (pedestrian dart-out). A high percentage, 68%, of these types of collisions occurred away from intersections. Children are also highly over-represented in dashes and dart-outs. Other information on potential countermeasures for these two groups of crashes may be found in PEDSAFE, an online countermeasure selection tool compatible with PBCAT (Harkey and Zegeer, 2004). Crossing Roadway - Vehicle Turning (#7) accounted for 7% of pedestrian crashes. All sorts of vehicle turning situations are covered in the Turning Vehicle category, including right and left turns at both intersections and driveways when the pedestrian and the vehicle are traveling in either the same or opposite directions or are originally on crossing paths. A majority (79%) of pedestrians struck by turning vehicles were crossing at an intersection when struck, 10% were crossing near an intersection, and 10.5% at a mid-block area. Potential Countermeasures for this group of crashes are in general similar to those under Motorists making Left Turns and striking Parallel Path pedestrians. At intersections, treatments include roundabouts, mini traffic circles, median barriers or curb radii reductions, changes in signal timing (separate movements or turn restrictions). Other treatments are also described in in PEDSAFE. The 8 th and 9 th most frequent groups include pedestrians who were in the roadway, but other details are lacking, or even less was known about the location and circumstances leading up to the crash. Unless the causes and locations are known, specific countermeasures may be difficult to identify. Multiple Threat (#10) accounted for 185 pedestrian collisions over this period. Forty-four percent of these occurred at intersection locations with another 14% related to an intersection, and 41% at midblock locations. Potential Countermeasures that can reduce the risk of multiple threat collisions include advance stop bars before intersections and midblock crossings, locating bus stops on the far side of intersections or crosswalks, and providing controlled crossings for multi-lane roadways. Another highly represented group of crashes include Pedestrians struck while Crossing a Driveway or Alley (#11). This crash type is similar to the Turning Vehicle group, but involves drivers turning in and out of driveways and across the path of pedestrians. 20
21 Treatments for driveways include raised pedestrian driveway crossings (level with sidewalk). Working or Playing in the Roadway combined, accounted for a little more than 1% and Bus-related Crashes accounted for 1%. These types relate to the presence of a bus when the pedestrian was crossing, not buses striking pedestrians. The remaining crash groups together account for less than 2% of all the pedestrian crashes. Again, more information on potential countermeasures for the above types of crashes may be reviewed in the interactive Web site and document, PEDSAFE: Pedestrian Safety Guide and Countermeasure Selection System (PEDSAFE). In addition a selection tool is available to help narrow down potential countermeasures for particular locations. Age Group and Crash Group Involvement Examination by age group of the pedestrian reveals variation in the extent to which different ages are involved in these crash type groups (detailed data not shown, but some results are summarized below). As might be expected, adults and children tend to be more involved in different types of crashes, often at different types of locations. Among the more predominant crash types, age-related trends are as follows: Backing vehicle Young children, those 5 and under, are over-represented in this category, which accounted for about 17% of age five and under reported crashes, but about 11% over all ages. Older adults, ages 61 and up, are also over-represented, with 25% of their crashes involving backing vehicles. Off Roadway Young children and older adults are also the most over-represented in Off Roadway crashes in general, including crashes in driveways and parking lots (when the vehicle is not backing). This group accounts for 22% of age 5 and under crashes and 16% of aged 61 and older crashes, compared with about 12% of crashes overall. Pedestrian Dart-out or Dash Children under age 16 are highly over-represented in this crash type which accounted for about 27% of their crashes compared with about 8% over all ages. Crossing Roadway Vehicle Turning Older adults are also somewhat overrepresented in this crash type, most probably because older adults more often cross in crosswalks at intersections than other ages. Unusual circumstances Adults of all ages, but particularly those from about 26 to 40 years are most involved in this group of crashes which includes such circumstances as assault with vehicle, dispute-related crashes, pedestrians on or clinging to a vehicle that began moving, the results of vehicle striking vehicle or vehicle striking object crashes, and vehicles leaving the road and striking pedestrians on a sidewalk or off-road area, as well as collisions involving emergency vehicles, vehicles without drivers and others. 21
22 Additional information on countermeasures for crash types and for general problem types is available from PEDSAFE, developed for the U.S Department of Transportation, Federal Highway Administration. In order to develop countermeasures for particular locations, crash data specific to those locations would need to be examined. A comprehensive evaluation through on-site safety audits, including behavioral and engineering assessments would also be needed. Another resource is the Crash Modification Factors Clearinghouse, which provides estimates of expected crash reductions for various treatments. See the Pedestrian Crash Facts summary report for more information on pedestrian crash characteristics and associated environmental and roadway crash factors. 22
23 References Cross, K.D. and Fisher, D. (1977). A study of bicycle / motor vehicle accidents: identification of problem types and countermeasure approaches. Santa Barbara, California: Anacapa Sciences, Inc. [DOT HS ] Harkey, D.L., Mekemson, J., Chen, M-C., and Krull, K. (2000). Pedestrian and Bicycle Crash Analysis Tool (PBCAT) User s Manual. McLean, Virginia: Office of Safety Research and Development, Federal Highway Administration. [FHWA-RD ] Harkey, D.L., Tsai, S., Thomas, L., and Hunter, W.W (2006). Pedestrian and Bicycle Crash Analysis Tool (PBCAT): Version 2.0 Application Manual, Federal Highway Administration, Office of Safety Research and Development: McLean, VA, 241 pp. [FHWA-HRT , document and software available at: Harkey, D.L., and Zegeer, C.V. (2004). PEDSAFE: Pedestrian Safety Guide and Countermeasure Selection System. Federal Highway Administration, Office of Safety Programs: Washington, DC, 336 pp. [FHWA-SA , document and on-line resource available at Knoblauch, R.L. (1977). Causative factors and countermeasures for rural and suburban pedestrian accidents: accident data collection and analysis. Falls Church, Virginia: BioTechnology, Inc. [DOT HS ] Knoblauch, R.L., Moore, W., and Schmitz, P.R. (1978). Pedestrian accidents occurring on freeways: an investigation of causative factors, accident data collection, and analysis. Washington, DC: Federal Highway Administration. [FHWA RD /171] National Highway Traffic Safety Administration (n.d.). Manual accident typing for pedestrian accidents: coder s handbook. Washington, DC: National Highway Traffic Safety Administration. Snyder, M.B. and Knoblauch, R.L. (1971). Pedestrian safety: the identification of precipitating factors and possible countermeasures. Vol. I and II Appendices. Silver Spring, Maryland: Operations Research, Inc. [DOT/ NHTSA. FH ] 23
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