00983270

Component

https://doi.org/10.3141/1877-06

http://scholar.google.com...anno&publication_year=2004

In current freeway work zones, lane closure operations employ both left-lane and right-lane closure layouts. The safety implications of these two layouts are not well understood. First, the safety implications of work zone left-lane closures and right-lane closures for three-lane freeway segments are assessed. Lack of safety is measured on the basis of two traffic-flow characteristics: uncomfortable deceleration and speed variance. These characteristics are obtained for specific work zone layouts by using microlevel simulation (INTEGRATION). Second, an alternative, more channelized lane closure layout is proposed and its safety benefits are compared with those associated with the current left-lane and right-lane closures. The results of the simulation suggest that the proposed channelized lane closure layout results in lower values of uncomfortable deceleration and speed variance and thus improves safety for the three-lane freeway segment.

This paper appears in Transportation Research Record No. 1877, Maintenance Management and Services.

00983264

English

p. 53-61

2004

Transportation Research Record

0309094739

Figures (3) ; References (14) ; Tables (7)

Alternatives analysis; Freeways; Lane closure; Layout; Microsimulation; Work zone safety; Work zones

INTEGRATION (Computer model)

Highways; Maintenance and Preservation; Operations and Traffic Management; Safety and Human Factors; I60: Maintenance; I73: Traffic Control

TRIS, TRB, ATRI

Dec 9 2004 12:00AM

• DETERMINING DESIGN WIND LOADS FOR WORK ZONE TRAFFIC-CONTROL DEVICES
• ESTIMATES OF WORK ZONE EXPOSURE ON THE NATIONAL HIGHWAY SYSTEM IN 2001
• EVALUATION OF AUTOMATED WORK ZONE INFORMATION SYSTEMS
• EVALUATION OF INTERSTATE HIGHWAY CAPACITY FOR SHORT-TERM WORK ZONE LANE CLOSURES
• HIGHWAY MAINTENANCE OUTSOURCING EXPERIENCE: SYNOPSIS OF WASHINGTON STATE DEPARTMENT OF TRANSPORTATION'S REVIEW
• IMPLEMENTING HIGHWAY PREVENTIVE MAINTENANCE: COMPARING CHALLENGES, PROCESSES, AND SOLUTIONS IN THREE STATES
• INJURY SEVERITY AND TOTAL HARM IN TRUCK-INVOLVED WORK ZONE CRASHES
• MODEL TO ANALYZE THE EFFECTIVENESS OF HIGHWAY REST AREA PERFORMANCE
• OPTIMAL DYNAMIC SPEED-LIMIT CONTROL FOR HIGHWAY WORK ZONE OPERATIONS
• PERFORMANCE EVALUATION OF PAVEMENT MARKINGS UNDER DRY, WET, AND RAINY CONDITIONS IN THE FIELD
• PILOT STUDY OF SPEED-RECOVERY DURATION AS A MEASURE OF WINTER MAINTENANCE PERFORMANCE
• PREDICTION OF BRINE APPLICATION FOR PRETREATMENT AND ANTI-ICING
• TRAFFIC-SIGNAL GROUP RELAMPING MODEL
• WORK ZONE OPTIMIZATION FOR TWO-LANE HIGHWAY MAINTENANCE PROJECTS