Highway work zones reduce available lanes for traffic, form traffic bottlenecks, and cause traffic delays and congestion. The additional travel time and effort involved in changing driving maneuvers … [Read more...] about A Model for Estimating Excess User Costs at Highway Work Zones
Traffic Queuing
Traffic Capacity, Speed, and Queue-Discharge Rate of Indiana’s Four-Lane Freeway Work Zones
In addition to traffic capacity, vehicle speeds and queue-discharge rates at work zones are essential in assessment of work zone traffic delays and user costs. The traffic flow characteristics of … [Read more...] about Traffic Capacity, Speed, and Queue-Discharge Rate of Indiana’s Four-Lane Freeway Work Zones
Traffic Flow Characteristics of the “Late Merge” Work Zone Control Strategy
Conventional traffic control plans such as the one used in Nebraska ( NDOR Merge) for lane closures of rural Interstate highways normally work well as long as congestion does not develop. However, … [Read more...] about Traffic Flow Characteristics of the “Late Merge” Work Zone Control Strategy
User’s Manual for QUEWZ-98
QUEWZ-98 is a microcomputer analysis tool for planning and scheduling use in freeway work zone lane closures. It analyzes traffic conditions on a freeway segment with and without a lane closure in … [Read more...] about User’s Manual for QUEWZ-98
Work zone impact thresholds
Texas does not have any statewide policy on queue length or delay time thresholds. The work zone impacts are usually considered at the district level so that varying environments are treated on a … [Read more...] about Work zone impact thresholds
Measuring work zone performance
Illinois DOT is looking at measurements for work zone performance based on the following: 1. Delays caused by work zones shall not exceed more than 5 minutes per mile with a maximum of 30 minutes … [Read more...] about Measuring work zone performance