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- 1. Speed Management Action Planning for Randolph County, NC National Rural Transportation Conference Rural Transportation Safety April 24, 2013
- 2. Randolph County • Pop. 142,901 (2011) • 9 Municipalities • Largest: Asheboro - 25,012 • Smallest: Seagrove – 228 • 10% Hispanic • 82% White Alone • 7% Black
- 3. Need for Action - Randolph Crash Trends
- 4. Need for Action – Randolph Injury Trends
- 5. Need for Action – Randolph Crash Factors
- 6. NC Drivers Admit Frequency of Driving More than 5 MPH Over the Limit in a 30 MPH Zone Most of the time 22% About half the time 17% Occasionally 46% Never 15% Don’t know/Not sure 1% Yet, a majority, 55%, did not recall having read, seen or heard specific messages or information related to speed enforcement programs FINAL REPORT, NHTSA-GHSA STATEWIDE TELEPHONE SURVEY (July 12 – 21, 2010)
- 7. Benefits of Speed Management Action Plan – Meeting Safety Goals Use a Systematic Approach to identify and treat problems Seek solutions through engineering, enforcement, public information and education Use a Proactive Approach to prevent future problems
- 8. Benefits – Coordinate and Amplify Efforts
- 9. Benefits – Improve Quality of Life Develop sustainable program that reflects the community Reduce injury and associated costs to community Improve transportation options and livability
- 10. Framework of Action Plan
- 13. Some of the County’s different types of Streets with crash problems and findings
- 14. S Church St – Urban four lane; ~ 3500 vehs. / day
- 15. Church/Walker St & high school (signal- control)
- 16. Church Street
- 18. Potential Solution: Convert four lane to two lanes + other uses (e.g. bike lanes/parking) Expected crash reductions - 20% – 47% in total crashes Expected crash reductions - 20% – 47% in total crashes Erwin Road conversion, Durham
- 19. Edgewater Dr, Orlando conversion
- 20. 3.6 1.2 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0InjuryRate(perMVM) Before After (41 per yr)(41 per yr) (12 per yr)(12 per yr) Edgewater Dr, Orlando conversion
- 21. Edgewater Dr, Orlando conversion 15.7% 7.5% 9.8% 8.9% 29.5% 19.6% 0.0% 5.0% 10.0% 15.0% 20.0% 25.0% 30.0% 35.0% PercentofVehiclesTravelingover36MPH Before AfterBefore BeforeAfter North End Middle South End After
- 22. SR 2261, Old Liberty Rd Predominant Crash chars. Dry surface 78% Wet 14% Daylight 65% Dark, lighted road 25% Clear or cloudy 90% At Curve 29% Predominant Crash types Rear-end 22% Angle 14% Varied other
- 23. Liberty Road – Rural to Urban
- 24. Old Liberty Road, Ashe. 1500 – 5900 vehicles per day
- 25. Liberty Road
- 26. Solutions? Some short term geometric and signing improvements at intersections Potential curve treatments Possible gateway treatments at urban limits Longer term – What is the vision of the street’s purposes - plan and design accordingly
- 27. US 64, Ramseur - Franklinville 8200 – 18,000 vehs per day; 193 crashes in five years; higher than average percentage - more severe
- 28. US 64 East of Ramseur Strategic Highway Corridor
- 29. Jordan Road/ US 64, Ramseur – What changed?
- 30. US 64 in Ramseur – what changed? What didn’t change?
- 31. Potential Solutions Review speed limits, signing, length of speed transitions, zones Difficult to affect the design speed much without major re-do Median refuges, lane width reductions in shorter term Enforce closer to limit Engineering and design improvements at intersections Lighting
- 32. Hoover Hill Rd Fork Creek Mill Rd Bull Run Creek Rd Rural Two-lanes
- 33. Enhanced curve delineation Expected crash reductions - ~ 25% in fatal and injury crashes at treated curves Expected crash reductions - ~ 25% in fatal and injury crashes at treated curves
- 34. Enhanced curve delineation Larger night-time crash reductions expected Larger night-time crash reductions expected
- 35. Stripe wider edge line on rural roads Wider edge lines are being tested on rural NC roads now; Total width of road may be a consideration Wider edge lines are being tested on rural NC roads now; Total width of road may be a consideration
- 36. Potential Solutions Review speed limits Safety edge, rumble strips Assess high speed rural intersections Low-cost slowing treatments – rumbles and paved medians or Roundabout designs Determine if more extensive upgrades -realignments, paved shoulders are warranted
- 37. Use Roundabout and Mini-roundabout designs for intersection control Hillsborough Street BID Controls speeds. Expected crash reductions - ~ 65% - 90% dep. on environment and whether converting from two-way stop control or signal Controls speeds. Expected crash reductions - ~ 65% - 90% dep. on environment and whether converting from two-way stop control or signal
- 38. Small Reductions in Speeds AASHTO, 2010, Highway Safety Manual, p. 3-57 Can have a large Impact on safety
- 39. Enforcement, Educational, and Policy Solutions Enhance enforcement presence and conspicuity Lower (default) speed limit Lower enforcement tolerance Court adjudication procedures and revenue
- 40. Action Plan 1. Review Existing Speed Limits for Different Types of Roadway Corridors and Intersections (Rural v. Urban) • What should be done? 2. Prioritize Curves with Severe Crashes for Assessment and Systematic Treatment
- 41. Action Plan 3. Frame Problem through a Public Information and Education Program 4. Corridor Focused Enforcement Program
- 42. Challenges/Next Steps 1. How to prioritize what and where speed management modifications to roadways should occur and how much 2. Develop resources and political will for targeted enforcement and automated speed enforcement and consistent penalties 3. Public buy-in needed for comprehensive speed management program
- 43. • Sponsored by Federal Highway Administration, Speed Management Program • Randolph County Task Force • Plan Analysis and Support by University of North Carolina, Highway Safety Research Center Speed Management Action Plan Guan Xu Guan.Xu@dot.gov Jesse Day jday@ptrc.org Libby Thomas thomas@hsrc.unc.edu
Notas del editor
- Pilot project sponsored by FHWA to help States and localities develop and implement plans.
- Over 3000 crashes every year; a large proportion – especially of the more severe crashes (the fatal and A (disabling) injury type) are deemed to be speeding-related by the officers investigating the crashes. A large share involve striking fixed objects, other run-off road and lane departure types including sideswipes and head-on; also animals, pedestrians and cyclists.
- Not just Randolph County. Our culture doesn’t talk about the need to reduce speeding much.
- Speed has traditionally been thought of as exclusively a behavioral or enforcement problem. We now know that road design and engineering measures profoundly affects the speeds that drivers select and have to be part of the solution. Engineering measures in general should be designed and implemented in consideration of operating speeds, type of traffic, size of roadway, etc. Proactive Incorporate into overall Safety Programs Apply speed management concepts from Planning to Implementation
- Comprehensive Approach - Most of these partners/stakeholders were present and engaged at the initial stakeholder workshop.
- The same types of problems we’ve observed here could be observed in any NC county – esp. rural county, but they are esp. spread out over this large rural Co. making treatment targeting especially a challenge.
- Through screening process – identified quite a few routes – both urban and rural that could potentially benefit from a speed and safety review.
- Was noted as a problem intersection for pedestrians in the CTP survey – at the high school
- Thanks to police officer Art Milligan for helping with the review and pointing out some of the issues with this street.
- Bike lanes
- Or parking
- 85 th Percentile for all vehicles = 43 mph (speed limit 35 mph) High level of bike/pedestrian accidents when compared to similar corridors in Charlotte ADT up to 25,000
- Initiated by community planning to achieve goals of multi-modal comfort, improved uses of the street including economic and social activities all in an historic neighborhood.
- What would you think the speed limit is on this road?
- Turning left at sharp skewed angle intersection. What is safe speed of vehicles (PREVIOUS SLIDE) approaching from left around curve given the potentially slow, awkward left turns here?
- Drop off – dip at intersection if vehicle on Old Liberty goes across that dashed line. Could delineation be improved? Other?
- On approach, at night, in the rain, esp. if driving too fast, it could be easy to overshoot this intersection and crash into the yard across. Larger stop sign; more reflective treatments across from T?
- Pedestrians, Motorcyclists to large trucks use the road. Again – speed management – requires either low enough speeds that different weight and speed of users can safety share the road, OR separation of different weight and speed of users if speeds are higher, different mass of users, etc. (saw logging truck, trucks hauling garbage, etc on nearby sections of this road.)
- Enforcement – backed up by adjudication
- Rural two-lane roads – curves, grades, junctions (sometimes all three together), skewed angle intersections, animals, roadside hazards – trees, mailboxes, even signs, pavement drop-offs (most of what we saw looked pretty good) Also – weather & slick pavements, nighttime, alcohol & other drugs
- Improved pavement friction at curves might be another treatment Plastic, collapsible, reflective bollards may be an alternative that is safer for curve treatments – reducing the “fixed object” risk
- Improved pavement friction at curves might be another treatment Plastic, collapsible, reflective bollards may be an alternative that is safer for curve treatments – reducing the “fixed object” risk
- Target rumble strips and safety edge to roads with higher proportion of KAB crashes / mi.
- Target rumble strips and safety edge to roads with higher proportion of KAB crashes / mi.
- Over 20 new or renovated businesses $250+ million proposed, under construction or completed ($270+ sites just outside the BID) Foot traffic up noticeably Nearly all merchants report improved sales 28%+ food and beverage sales tax revenue increase
- 1 – 2 mph reduction from 30 mph 17% to 34% reduction in fatal crashes Many other treatments and designs Are part of the speed management tool box – depending on the context and issues. These do not have to be obviously related to speed to be part of effective management – e.g. separation of different weight and speed of users is a ‘speed management’ strategy. So, sidewalks/paths,/ bike lanes for pedestrians and cyclists; climbing lanes for slower vehicles in areas with steep grade, signal control at intersections are examples.
- There are 30K-35K speeding tickets yearly in Randolph County. Targeted enforcement alone won’t solve the problem, education and the threat of enforcement requires a mulit-proged solution.