An analysis was conducted of the impact that overweight vehicles have and will have on the life of the pavements in the Seattle metropolitan area. The study focuses on major Metro bus routes with both rigid and flexible pavements.
Recommendations are made to mitigate the impact of the higher loads from the bus fleet. These recommendations include route modifications to avoid streets with thinner, underdesigned pavements, increasing pavement thickness for rebuild or overlaid streets, and the purchase of vehicles which meet legal axle loads.
October 27, 2007
Peter G. De Boldt, Esther Chinn.
Washington State Transportation Center (TRAC)
- # of Pages: 251 p., 1,427 KB (PDF)
- Subject: Buses, Buses routes, Durability, Flexible pavements, Heavy vehicles, Live loads, Load limits, Maintenance, Metropolitan areas, Pavement performance, Rigid pavements, Service life, Thickness, Traffic mitigation, Urban highways, Weight.
- Keywords: Pavement design, pavement service life, heavy vehicles, buses.
- Related Publications:
This abstract was last modified April 29, 2008