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 Queuing
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
In the past, the state has evaluated work zones based on queue length of traffic at the work site by using ADT counts and the QUEWZ program. … [Read more...] about Measuring work zone performance
Emissions Due to Construction Equipment and Traffic Delays – Task 6: Contribution of Vehicular Emissions Caused by Reduction in Capacity During Roadway Construction
Task 6 modeled an array of possible construction work zone projects with respect to facility demand (low, medium, and high average annual daily traffic [AADT]); facility cross section (two to five … [Read more...] about Emissions Due to Construction Equipment and Traffic Delays – Task 6: Contribution of Vehicular Emissions Caused by Reduction in Capacity During Roadway Construction