New Mexico Safety Corridors Identification and Creation

Processes

Sandra MartinezAnnaliese Mayette

Background

Request from CommunityUS 82 Pilot

Legislation Enacted Traffic Safety Summit 12 Corridors Statewide

Demographics Demographics

5th Largest State2002 Population= 1,884,6172002 100MVM= 227.282002 MVM/ 100k Pop= 12.062002 Licenses Drivers= 1,240,000Licensed Drivers/Pop >15yo= 84.6%Road Miles=State Roadways about10,000 miles

US 82 Pilot

Participation Community Law Enforcement District Engineer FHWA Political Entities Advocacy groups Media Emergency Responders (Fire & EMS)

Criteria 3 to 5 Year History on serious injury and fatality

crashes. Crash Investigation Unit Review of existing initiatives Review by NMDOT District Engineer Media Campaign Equipment and signage review

Process of Location Selection Criteria set for initial analysis from TSB Statistical analysis using a sliding window

methodology Potential locations are refined Description of refined locations Selection of 2 locations per district based on input

of local partners and program goals for that district

This is an iterative process which begins and ends with program goals for each district.

Process is based on Program Goals

Parallel processes of statistical and programmatic analysis

Statistical AnalysisPreliminary data analysisInitial analysis based solely on

criteria

Additional analysis based on refined locations provided by program managers

Program AnalysisSet initial criteriaInitial review of locations

identified in statistical analysisRefine locations based on

geography, and community input

Selection of 2 locations for each district

Statistical Analysis Based on criteria Sliding window methodology finds segments Segments can be longer than 5 miles if criteria

continue to be met over a longer stretch of road

Goal, Objective and Measures Goal - Identify areas of high crash risk and take

corrective action Objective - Develop a formula for effectively

addressing crash problem areas

Performance Measures – 10 to 20% reduction

Results

For Pilot (US82) 18 months of the corridor preliminary analysis shows a 33% reduction of Fatal and Serious Injury crashes compared to the 18 months prior to establishing the corridor.

Planned Analysis The performance measure is percent change in

crashes. This percent change can be compared to the

statewide change and to the district-wide change. This percent change can also be compared to the

system-wide change,and to the system change for that district.

Re-Evaluation After 3 years of data collection, corridor is re-

evaluated to determine if an impact was made.

Challenges Lack of Resources

FundingEquipmentEnforcement

Political Issues Geography

Contact Information Sandra Martinez

Traffic Safety BureauTransportation Programs DivisionDepartment of TransportationState of New MexicoP.O. Box 1149Santa Fe, New Mexico 87504-1149

Annaliese MayetteDivision of Government Research1920 Lomas NE University of New MexicoAlbuquerque, New Mexico 87131