Roadway Safety Corridor Study Audit US 41 RSA | June 14/15, 2017 - - PowerPoint PPT Presentation

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Roadway Safety Corridor Study Audit US 41 RSA | June 14/15, 2017 - - PowerPoint PPT Presentation

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US 41 (Tamiami Trail) Roadway Safety Corridor Study Audit US 41 RSA | June 14/15, 2017 Agenda Schedule Project Overview RSA Responsibilities RSA Process Overview Historical Crash Review 2 PROJECT OVERVIEW Corridor Study Overview Major

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US 41 (Tamiami Trail) Corridor Study

US 41 RSA | June 14/15, 2017

Roadway Safety Audit

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Agenda

Schedule RSA Process Overview RSA Responsibilities Historical Crash Review

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Project Overview

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PROJECT OVERVIEW

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Corridor Study Overview

Major Stakeholders

  • Sarasota-Bradenton

International Airport

  • New College of Florida
  • USF Sarasota-Manatee
  • Ringling Museum
  • Sarasota Classic Car

Museum

  • Asolo Repertory Theatre
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Corridor Study Overview

Study Schedule

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2016 FDOT AADTs

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  • Existing socio-economic data
  • Existing land use and zoning
  • Future land use and development plans
  • Existing and programmed roadway characteristics

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Outline

Existing Conditions

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Map of Speed Limits

Existing Conditions

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Map of Traffic Signals

Existing Conditions

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Typical Sections

Existing Conditions

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Transit Routes

Existing Conditions

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Bicycle Facilities

Existing Conditions

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  • What is a Road Safety Audit?
  • US 41 historical crash review
  • Field review RSA responsibilities
  • Discussion: Corridor issues/opportunities & project goals

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Kick Off Meeting (10:00 AM – 12:00 PM)

Today’s Schedule

Lunch Break (12:00 – 1:30 PM) Walk Corridor (1:30 – 4:30 PM) PM Peak Hour Intersection Review (4:30 – 6:00 PM) PM Peak Hour Observations (5 – 6 PM) Dinner Break (6:00 – 8:30 PM) Night Field Review (8:30 – 10:00 PM)

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AM Peak Hour Observations (7:00 – 8:30 AM) Continue Walking Corridor (8:30 AM – 12:00 PM) Lunch Break (12:00 PM – 1:30 PM) RSA Observations Meeting (1:30 PM – 4:30 PM)

  • Discuss safety issues observed during field review
  • Summarize and record observations by intersection and segment
  • Discuss and record potential improvements/countermeasures

Tomorrow’s Schedule

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ROAD SAFETY AUDIT OVERVIEW

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  • What is a Road Safety Audit (RSA)?
  • Why do we need RSAs?
  • When do we conduct RSAs?

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Basic Concepts

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A road safety audit is a formal safety performance examination

  • f an existing or future road or intersection by an independent

audit team.

What is a Road Safety Audit?

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What is a Road Safety Audit?

  • formal:

procedures and documentation

  • safety performance:

focus on safety

  • independent:

auditors detached from project team

  • audit team:

general experience and specialists

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A Road Safety Audit also…

  • Considers the safety of all road users
  • Examines the interaction of project elements
  • Considers interactions at the borders or limits of the project
  • Proactively considers mitigation measures
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Why do we need RSAs?

6%

27% 57% 3%

3% Road Environment Factors (34%) Vehicle Factors (13%) Human Factors (93%) Typical Reported Crash Causes 1% 3%

Source: HSM Chapter 3 Figure 3-3

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  • Relatively few road-related safety issues are identified in collision reports.
  • Road designs need to anticipate and accommodate common

driver/pedestrian/bicycle errors.

  • Easier to design and build safer roads than to modify some entrenched

driver/pedestrian/bicycle behaviors

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Why do we need RSAs?

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  • There are many competing interests in the planning and design process:
  • Cost, Environment, Capacity, Safety
  • Compromises are a reality
  • RSAs identify safety implications, safety is an explicit consideration in

planning and design, and that safety does not “fall through the cracks”.

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Why do we need RSAs?

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HISTORICAL CRASH REVIEW

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Corridor Crash Overview

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US 41 – University Pkwy to Whitfield Ave

  • 474 total crashes from 2011 to 2015
  • 3 fatal, 161 injury, 310 PDO
  • 5 bike and 5 pedestrian
  • Higher crashes observed on Monday/Friday, peak hours

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Corridor Statistics

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  • 242 rear-end (51%), 69 sideswipe (15%), 49 left-turn (10%), 42 run-off-the-

road (9%), and 34 angle (7%)

  • 37% of crashes in dark lighting conditions
  • 303 (64%) crashes occurred within signalized intersection influence areas

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Corridor Statistics

US 41 – University Pkwy to Whitfield Ave

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  • 10 crashes – 5 pedestrian, 5

bicycle

  • Intersections
  • University Pkwy
  • 1 pedestrian
  • 2 bicycle
  • Braden Ave
  • 1 pedestrian
  • Segments
  • Edwards Dr to Braden Ave
  • 3 pedestrian
  • 2 bicycle
  • Braden Ave to Tallevast Rd
  • 1 bicycle

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Pedestrian and Bicycle Crashes

US 41 – University Pkwy to Whitfield Ave

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  • 303 crashes at signalized intersections (64%)
  • US 41 at University Pkwy (172 crashes)
  • US 41 at College Dr/General Spaatz Blvd (33 crashes)
  • US 41 at Braden Ave (30 crashes)
  • US 41 at Gaines Ave/Tallevast Rd (34 crashes)
  • US 41 at Whitfield Ave (34 crashes)

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Signalized Intersections

US 41 – University Pkwy to Whitfield Ave

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  • US 41 at University Pkwy –

172 crashes

  • 43 (25%) injury and 129

(75%) PDO

  • 118 (69%) rear-end and

28 (16%) sideswipe

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  • US 41 at College Dr /General

Spaatz Blvd – 33 crashes

  • 9 (27%) injury and 24

(73%) PDO

  • 19 (58%) rear-end, 4

(12%) run-off-the-road, and 4 (12%) left-turn

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  • US 41 at Braden Ave – 171

crashes

  • 1 fatal, 12 (40%) injury,

and 17 (57%) PDO

  • 16 (53%) rear-end, 5

(17%) run-off-the-road, and 3 (10%) left-turn

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  • US 41 at Gaines Ave /Tallevast

Rd – 34 crashes

  • 10 (29%) injury and 24

(71%) PDO

  • 16 (53%) rear-end and 5

(17%) run-off-the-road

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  • US 41 at Whitfield Ave – 34

crashes

  • 12 (35%) injury and 22

(65%) PDO

  • 19 (56%) rear-end and 7

(21%) sideswipe

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Segment Locations

  • 171 crashes between signals (36%):
  • University Parkway to College Dr/General Spaatz Blvd (12 crashes over 0.342

miles)

  • College Dr/General Spaatz Blvd to Edwards Dr (14 crashes over 0.169 miles)
  • Edwards Dr to Braden Ave (69 crashes over 0.560 miles)
  • Braden Ave to Tallevast Rd (62 crashes over 0.818 miles)
  • Tallevast Rd to Whitfield Ave (14 crashes over 0.192 miles)

US 41 – University Pkwy to Whitfield Ave

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FIELD REVIEW RESPONSIBILITIES

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Field Review Responsibilities

  • Wear your safety vest!
  • Everyone should take as many notes and pictures as they can!
  • Drive entire corridor, south to north then north to south
  • Walk west and east sidewalks
  • Observe and record pedestrian activity and issues
  • Drive every intersection approach

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Field Review Responsibilities

  • At each signalized intersection
  • Walk all crosswalks – presence and condition of ped/bike facilities
  • Presence of intersection or roadway lighting
  • Intersection sight distance
  • Levels of pedestrian and bicycle activity
  • Interaction with transit
  • Driver/pedestrian/bicycle behavior
  • Record on handout
  • “Walk” and “Flashing Don’t Walk” timings
  • Phasing
  • Clearance intervals (Y+AR)
  • At each unsignalized (and signalized) intersection
  • Sight distance
  • Proper signage
  • Proper sign placement (not obstructing view)

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Discussion

  • Corridor issues and opportunities
  • Project goals

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