01020439

Component

https://doi.org/10.3141/1948-09

http://scholar.google.com...+Kim&publication_year=2006

In October 2004, about 9 lane km of deteriorated truck lanes on Interstate 15 at Devore in Southern California was rebuilt during 18 days with extended one roadbed full-closures with the counterflow traffic system and 24-h construction operations. The project implemented the automated work zone information system (AWIS) to reduce peak hour delay during construction by changing road user’s travel patterns and diverting traffic to detour routes. This paper describes the design, performance, and validation of AWIS with monitored traffic data before and during construction used. The AWIS was installed to provide road users with real-time travel information so that they could avoid traffic delays in the construction work zone (CWZ) corridor. Travel times through the CWZ were estimated from speed data and enhanced in two ways: (a) portable and permanent changeable message signs on site and (b) off-site (project website) implementation with travel time messages, traffic snapshots, and video streaming. AWIS travel time was estimated at 90% of actual travel times as measured by probe vehicles. The peak hour traffic demand through the CWZ was reduced by up to 18%, with significant volume increases to detour freeways. The AWIS operation contributed to a decrease in the maximum delay for weekday peak hours (from expected 90 min to measured 50 min on average during construction). The outcome of this study will help transportation agencies and practitioners efficiently design and operate AWIS for highway rehabilitation under high traffic volume.

01031686

English

pp 77-85

2006

Transportation Research Record: Journal of the Transportation Research Board

0309099579

Print

Figures (5) ; References (10) ; Tables (1)

Construction sites; Detours; Highway facilities; Information systems; Peak hour traffic; Real time information; Rehabilitation; Traffic delays; Traffic volume; Travel time; Variable message signs; Work zone traffic control

Automated work zone information systems

Southern California

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

TRIS, TRB, ATRI

Mar 3 2006 11:05AM

• A Model to Evaluate Roadway Concessions in Brazil
• Collaborative Adaptive Sensing of the Atmosphere: New Radar System for Improving Analysis and Forecasting of Surface Weather Conditions
• Development of Roadway Weather Severity Index
• Dynamic Late Merge Control at Highway Work Zones: Evaluation, Observations, and Suggestions
• Effectiveness of Alternative Chemicals for Snow Removal on Highways
• Effects of Outsourcing and Performance-Based Contracting on Innovations
• Effects of the Provision of Wide-Area Snowstorm Information on Winter Driving
• Estimating Interstate Highway Capacity for Short-Term Work Zone Lane Closures: Development of Methodology
• Feasibility of Using Accelerated Pavement Testing to Evaluate Long-Term Performance of Raised Pavement Markers
• Framework for Automatic Condition Assessment of Culverts
• Improving Compliance with Work Zone Speed Limits: Effectiveness of Selected Devices
• Integrated Approach to Pavement Marking Management
• Internal Traffic Control Plans and Worker Safety Planning Tool
• Motorist Comprehension of Traffic Control Devices for Mobile Operations
• Regression Tree Models to Predict Winter Storm Costs
• Snowstorm Event-Based Crash Analysis
• Understanding Statistics in Maintenance Quality Assurance Programs
• Whether Weather Matters to Traffic Demand, Traffic Safety, and Traffic Operations and Flow