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Intuitive Intersection Design Case Study: Broadway & 96Th Street

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Intuitive Intersection Design Case Study: Broadway & 96Th Street Intuitive Intersection Design th Case Study: Broadway & 96 Street Joshua Benson, AICP, NYC Department of Transportation 1 NACTO Designing Cities Conference, San Francisco, October 24, 2014 Hallmarks of Intuitive Design? 2 Street Improvement Projects in NYC • Vision zero – Mayoral Initiative: Eliminate all traffic fatalities in NYC by 2020 – 270 traffic fatalities/year average last 3 years – NYC has committed to focused enforcement, education, policy & street design changes • Street Design Projects – 70 intersection & corridor projects/year, 50 VZ – Case Study: Broadway at 96th Street – Leveraging Geometric & Signalization changes 3 Broadway at W. 96th Street Intersection Design Case Study Project Timeline • 2007: Subway reconstruction begins • 2010: Subway reconstruction completed • 2014: – January 10 & 19: Pedestrian fatalities – January 30: DOT Presents proposal to Community Board 7 – March 25: Intersection project begins – May 20: Intersection project completed 6 Context • Major subway station: 3 lines, express & local service • Heavy bus to subway transfer point • High density housing, retail corridors, high pedestrian activity • Regional motor vehicle traffic accessing highway interchange two blocks away • Multiyear capital project to overhaul subway station & reconfigure intersection (2007-2010) 7 Vast improvement for transit rider experience in station 8 Access on surface level became more challenging 9 Delays, multiple crossings 10 Recent pedestrian fatalities Fatalities • Alexander Shear, Jan 10, 2014 • Samantha Lee, Jan 19, 2014 Injuries (2008-2012) • Zero severe injuries • 52 total injuries, 20 pedestrian 11 Site Conditions 12 Subway Signal Timing Multiphase Signal Prioritizes Left Turn Movements Legal trip from NW corner to Subway Trip may take as long may have initial delay of 47 seconds as 1 minute 45 seconds Phase A: Phase B: Phase C: Phase D: 15 secs 28 secs 15 secs 32 secs Pedestrian must cross south first, then east-west 13 Observed Issues Rampant Crossing against signal Pedestrians crossing median to median without crosswalk or signal during perceived gaps 14 Not strong indicators of intuitive intersection design Proposed Plan 1. Two left turns banned: SB Broadway to EB W96th and 2. Expanded WB W96th St to SB Broadway pedestrian space on north mall 3. New mall to 4. New flush mall crosswalk median & lane designations for 5. Simpler W. 96th St N signal phasing… 15 Proposed Signal Phasing Phase A: Phase B: Phase C: 43 secs 15 secs 32 secs Legal trip from NW corner to Subway has zero initial delay 58 seconds maximum trip time Pedestrian has route flexibility/control 16 Pedestrian Crossing Time (Seconds) Proposed 47 Existing 43 43 58 32 32 43 0 43 Increase 32 +15 +43 +15 17 N Before and After 18 Before and After 19 Before and After 20 Before and After 21 Before and After (W 95th St) 22 Intuitive Design at Broadway & 96th • Captures flow of actual usage • Creates direct pedestrian routes • Offers more choice/control for pedestrians • Eliminates excess delay • Emphasizes Turn restrictions • Zero pedestrian injuries since implementation Web: nyc.gov/dot Thank Email: [email protected] You Project Area Project Site 24 Pedestrians cross Existing Conditions median to median when they think there is a gap 25 Anticipated Benefits 1. Fewer pedestrian/vehicular conflicts 2. Less confusion and more natural compliance with signals 3. Significant pedestrian and modest vehicular travel time improvements 26 .
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