In assessments of the impact of expressway lane closures on traffic flow, current practice generally involves an assumption of the nominal capacity per lane which varies, in some cases significantly, … [Read more...] about Work-Zone Traffic Operation and Capacity
Vehicles
Talking Freight – Work Zone Design and Large Trucks
The reconstruction and rehabilitation of U.S. interstate highways and other major and minor roadways that are part of the overall roadway system network often require work zones that allow the … [Read more...] about Talking Freight – Work Zone Design and Large Trucks
Enforcement Boosted in I-80 Work Zone After Truck Wrecks
In about one week’s time, several large trucks overturned in the same location at the I-80 work zone in Johnson County. It raised some concerns about the conditions of pavement edges. The DOT has … [Read more...] about Enforcement Boosted in I-80 Work Zone After Truck Wrecks
Expressway Single-Lane Work Zone Capacities with Commercial Vehicle Impacts
Like other government transportation agencies, the Ontario Ministry of Transportation performs regular maintenance and reconstruction of freeways across the province. If lane closures are required for … [Read more...] about Expressway Single-Lane Work Zone Capacities with Commercial Vehicle Impacts
Passenger Car Equivalents for Heavy Vehicles in Work Zones
There are no Passenger Car Equivalents (PCE) values developed for work zones. Consequently the PCE values of basic freeway section are borrowed despite the reservations about their applicability to … [Read more...] about Passenger Car Equivalents for Heavy Vehicles in Work Zones
New NHTSA Study Confirms Reflective Tape on Big Trucks Reduces Crashes, Fatalities
A new study by the U.S. Department of Transportation's National Highway Traffic Safety Administration (NHTSA) confirms that the reflective tape now being required to make trailers on big trucks easier … [Read more...] about New NHTSA Study Confirms Reflective Tape on Big Trucks Reduces Crashes, Fatalities