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Speed Management Action Planning for Randolph County, NC
National Rural Transportation ConferenceRural Transportation Safety
April 24, 2013
Randolph County
• Pop. 142,901 (2011)• 9 Municipalities• Largest: Asheboro - 25,012• Smallest: Seagrove – 228• 10% Hispanic• 82% White Alone• 7% Black
Need for Action - Randolph Crash Trends
Need for Action – Randolph Injury Trends
Need for Action –
Randolph Crash Factors
NC Drivers AdmitFrequency 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-GHSASTATEWIDE TELEPHONE SURVEY (July 12 – 21, 2010)
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
Benefits – Coordinate and Amplify Efforts
Benefits – Improve Quality of Life Develop sustainable
program that reflects the community
Reduce injury and associated costs to community
Improve transportation options and livability
Framework of Action Plan
Some of the County’s different types of Streets with crash problems and findings
S Church St – Urban four lane; ~ 3500 vehs. / day
Church/Walker St & high school (signal-control)
Church Street
Church and Wainman
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
Edgewater Dr, Orlando conversion
3.6
1.2
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0In
jury
Rat
e (p
er M
VM
)
Before After
(41 per yr)(41 per yr)
(12 per yr)(12 per yr)
Edgewater Dr, Orlando conversion
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%
Pe
rce
nt
of
Ve
hic
les
Tra
ve
lin
g o
ve
r 3
6 M
PH
Before AfterBefore BeforeAfter
North End Middle South End
After
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
Liberty Road – Rural to Urban
Old Liberty Road, Ashe. 1500 – 5900 vehicles per day
Liberty Road
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
US 64, Ramseur - Franklinville
8200 – 18,000 vehs per day;193 crashes in five years; higher than average percentage - more severe
US 64 East of Ramseur
Strategic Highway Corridor
Jordan Road/ US 64, Ramseur – What changed?
US 64 in Ramseur – what changed?
What didn’t change?
Potential SolutionsReview speed limits, signing, length of speed
transitions, zonesDifficult to affect the design speed much without
major re-doMedian refuges, lane width reductions in shorter
term Enforce closer to limitEngineering and design improvements at
intersections Lighting
Hoover Hill Rd
Fork Creek Mill Rd
Bull Run Creek Rd
Rural Two-lanes
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
Enhanced curve delineation
Larger night-time crash reductions expected
Larger night-time crash reductions expected
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
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
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
Small Reductions in Speeds
AASHTO, 2010, Highway Safety Manual, p. 3-57
Can have a largeImpact on safety
Enforcement, Educational, and Policy Solutions
Enhance enforcement presence and conspicuity Lower (default) speed limit
Lower enforcement tolerance
Court adjudication procedures and revenue
Action Plan1. 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
Action Plan
3. Frame Problem through a Public Information and Education Program
4. Corridor Focused Enforcement Program
Challenges/Next Steps1. 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
• 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 [email protected]
Jesse [email protected]
Libby [email protected]
