This review indicated that in QuickZone 2.0 a deterministic queuing model is applied to calculate the delays for oversaturated conditions; stochastic and speed reduction delays were not included. Data … [Read more...] about QuickZone Improvement for Rural Freeway and Model Validation
Traffic Queuing
Phase II – Improved Work Zone Design Guidelines and Enhanced Model of Travel Delays in Work Zones
This project contains three major parts. In the first part a digital computer simulation model was developed with the aim to model the traffic through a freeway work zone situation. The model was … [Read more...] about Phase II – Improved Work Zone Design Guidelines and Enhanced Model of Travel Delays in Work Zones
QuickZone: Modeling in the Zone
While reducing congestion and increasing mobility have always been concerns in work-zone construction, these two concerns have received increased attention as the number of road repair projects … [Read more...] about QuickZone: Modeling in the Zone
Estimation of Traffic Delays and Vehicle Queues at Freeway Work Zones
The traffic flow is disrupted and delayed at a work zone because the traffic capacity and the vehicle speed are lower at the work zone section than at other portions of the roadway. Traffic delays at … [Read more...] about Estimation of Traffic Delays and Vehicle Queues at Freeway Work Zones
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
Simulation-Based Estimates of Delays at Freeway Work Zones
Work zone related traffic delay is an important cost component on freeways with maintenance activities. This study demonstrates that delays are always underestimated by using the deterministic queuing … [Read more...] about Simulation-Based Estimates of Delays at Freeway Work Zones