00962106

Component

https://doi.org/10.3141/1824-05

http://scholar.google.com...lman&publication_year=2003

Law enforcement presence in work zones has long been recognized as one of the most effective speed-reduction methods available to transportation officials. Unfortunately, the design of many work zones makes effective enforcement difficult. Work zones that have no emergency shoulders on either side of the roadway are especially problematic. Incorporating enforcement pullout areas into construction phasing plans has been suggested as a way to improve enforcement activities. However, no guidance had been available on how frequently such enforcement areas should be incorporated. Research was conducted to determine law enforcement and contractor opinions on acceptable spacing criteria for pullout areas in a highway work zone. Two sets of surveys were made by using the Delphi method to solicit the opinions of law enforcement officers and roadway contractors regarding the relative difficulty or effectiveness of pullout areas located at various spacings through a long work zone. The Delphi method was used to quickly bring these groups to consensus. Construction contractors generally were against placing pullout areas closer than 2 mi apart. By contrast, law enforcement officers indicated that at spacing greater than 3 mi, the pullout area would not be useful for traffic enforcement. The results indicate that enforcement pullout areas in work zones should be spaced approximately every 2 to 3 mi or, as an alternative, work zones that eliminate emergency shoulders that are adequate for enforcement purposes should be no longer than 3 mi.

This paper appears in Transportation Research Record No. 1824, Highway Maintenance Safety, Support, and Services.

English

p. 37-43

2003

Transportation Research Record

0309085578

Figures (8) ; References (7)

Consensus; Contractors; Delphi method; Design; Law enforcement; Law enforcement personnel; Road shoulders; Spacing; Surveys; Work zones

Enforcement pullout areas

Design; Highways; Maintenance and Preservation; Operations and Traffic Management; Security and Emergencies; I60: Maintenance; I73: Traffic Control

TRIS, TRB

Aug 19 2003 12:00AM

• CAPTURING EFFECTS OF MAINTENANCE PRACTICES IN HIGHWAY ASSET VALUATION: REPLACEMENT-COST APPROACH VERSUS BOOK-VALUE METHOD
• CASE STUDY OF HIGHWAY MAINTENANCE MANAGEMENT: OHIO'S COUNTY WORK PLANS
• COMPUTERIZED EQUIPMENT REPLACEMENT METHODOLOGY
• DEPLOYMENT OF SMART WORK ZONE TECHNOLOGY IN ARKANSAS
• DEVELOPING UPDATED MINIMUM IN-SERVICE RETROREFLECTIVITY LEVELS FOR TRAFFIC SIGNS
• DIVERSION FROM A RURAL WORK ZONE WITH TRAFFIC-RESPONSIVE VARIABLE MESSAGE SIGNAGE SYSTEM
• EVALUATING SPEED-REDUCTION STRATEGIES FOR HIGHWAY WORK ZONES
• EVALUATION OF PERFORMANCE OF PERMANENT PAVEMENT MARKINGS
• GUIDELINES FOR APPLICATION OF PORTABLE WORK ZONE INTELLIGENT TRANSPORTATION SYSTEMS
• MORE EFFECTIVE WINTER MAINTENANCE METHOD FOR CYCLEWAYS
• NIGHTTIME VISIBILITY AND RETROREFLECTANCE OF PAVEMENT MARKINGS IN DRY, WET, AND RAINY CONDITIONS
• PERFORMANCE MEASURES FOR WINTER OPERATIONS
• PREDICTING WEATHER AND ROAD CONDITIONS: INTEGRATED DECISION-SUPPORT TOOL FOR WINTER ROAD-MAINTENANCE OPERATIONS
• RELATIONSHIP BETWEEN WINTER ROAD-SURFACE CONDITIONS AND VEHICULAR MOTION: MEASUREMENTS BY PROBE VEHICLES EQUIPPED WITH GLOBAL POSITIONING SYSTEM
• THEORETICAL APPROACH TO PREDICTING TRAFFIC QUEUES AT SHORT-TERM WORK ZONES ON HIGH-VOLUME ROADWAYS IN URBAN AREAS