CEE 2720 Carnegie TOD Recommendations Traffic Group 4/26/12

Transcription

1 CEE 2720 Carnegie TOD Recommendations Traffic Group 4/26/12

2 Outline Data Collection Analysis of Current and Future Conditions Recommendations

3 Data Collection We collected turning movement count data at six intersections: Mansfield and Walnut (unsignalized) Mansfield and Broadway Mansfield and Campbell s Run Busway and Campbell s Run Mansfield, Jefferson, and Main Main Street and Third Street We used Synchro to analyze levels of service at each

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5 Methodology Base: To determine future base volumes, we grew the existing traffic by 1% (linearly) for 10 years to get 2022 volumes. - Performed Highway Capacity Manual (HCM) capacity analysis at each intersection.

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7 Methodology Trip Distribution: reduced trips generated by each land use by 5% to account for transit use. Then determined distribution of entering and exiting traffic for the TAZ using existing proportions. Distributed the trips for each new land use through the network using these proportions.

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14 Methodology Combined: To determine projections for the combined condition, we added the trips generated by new land use to 2022 base volumes. Performed HCM capacity analysis at each intersection.

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16 Level of Service Analysis

17 Mansfield and Walnut Existing Future Base Future Combined Northbound C C C Southbound B C D Eastbound A A B Westbound A A A HCM LOS A A A Average Delay

18 Mansfield and Broadway Existing Future Base Future Combined Northbound E E F Southbound D D D Eastbound A B B Westbound A A B HCM LOS B B C Average Delay

19 Mansfield and Campbell s Run Existing Future Base Future Combined Northbound D D D Southbound D D D Eastbound D D D Westbound C C E HCM LOS D D D Average Delay

20 Campbell s Run and Busway (actuation only on Busway) Existing Future Base Future Combined Northbound A A A Southbound A A A Eastbound E E E Westbound E E E HCM LOS A A A Average Delay

21 Mansfield, Jefferson, and West Main Existing Future Base Future Combined Northbound E E E Northwest E E E Eastbound A A C Westbound A A B HCM LOS B B C Average Delay

22 Main and Third Existing Future Base Future Combined Northbound E E E Eastbound A B B Westbound A A B HCM LOS B B C Average Delay

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26 Recommendations

27 Road Diet We analyzed a road diet scenario using Synchro The Level-of-Service will not degrade below D for any intersection in the study area with mitigation measures Thus, we concur with Trans Associates recommendation for a road diet from Cubbage Street to Jefferson Street We also recommend extending the road diet from Jefferson Street to the intersection of Chestnut Street (where Mansfield becomes one-way)

28 Road Diet Cross Section (TA) Courtesy Trans Associates

29 Road Diet Pros No significant degradation of vehicle level of service Increases pedestrian and bicycle connectivity Installs missing sidewalk between intersections Signal equipment and pedestrian ramp upgrades at each intersection Allows for streetscape type beautification

30 Road Diet Cons Not a low cost solution Potential for controversy with commuters Scope of project may require the project be to completed in phases

31 Traffic Optimize signal timings and splits Update all signal heads to LED bulbs (currently only installed at Jefferson Street) 30 Percent Brighter (FHWA) More Energy Efficient Last Longer Courtesy FHWA

32 Pedestrians Install missing sidewalk connections Jefferson looking towards Mansfield Mansfield looking towards Jefferson Between Mansfield and Jefferson

33 Pedestrians We recommend that all curb ramps be upgraded in accordance with ADA standards (including truncated domes) Remove Install

34 Pedestrians We recommend repainting crosswalks for a consistent scheme of diagonal or perpendicular markings Or Remove Install Install

35 Pedestrians All Pedestrian signals should be retrofitted with countdown timers Remove Remove Install

36 Pedestrians A sidewalk should connect the crossing at Jefferson to the opening where pedestrians cross the railroad or crosswalk should be removed

37 Pedestrians Install signing at railroad crossing at busway Also, install rubber surfacing at crossing Reduces maintenance (FHWA) Reduces change in level (FHWA) Upgrade Install Courtesy NYDOT Install Courtesy FHWA

38 Transit At present, the Carnegie station is performing well below capacity, at LOS A even with future growth ACTA provides shuttle services between the station and job sites, but currently has low ridership We recommend public outreach to improve ridership and take advantage of the excess ridership capacity

39 Parking Previous recommendations: 366-space parking structure in place of the park-and-ride lot With the bus station operating well under capacity, we recommend studying the possibility of an additional level in the parking garage With the road diet, we hope to encourage pedestrian activity and reduce the increase in parking demand

40 References ftp://ftp.dot.state.pa.us/planning/pcti/2010-data/ /carnegie%20road%20diet%20report% pdf %20Pedestrian%20Treatments%20at%20Crossings%20ERCC.pdf

41 Questions? James Smith Douglas Smith Lindsay Meyers Chelsey Ackerman Nicole Bonomo Alaina Elias Joshua Cumberland Matthew Gilfillan Patrick Ryan Daniel Kennevan Ruth Muthoga Gregory Turko David Valko Zachary Visgarda Corey Woloschi Bradley Yagla