详情

原文传递 Minnesota Demonstration Project: Reconstruction of Trunk Highway 36 in North St. Paul.

题名：	Minnesota Demonstration Project: Reconstruction of Trunk Highway 36 in North St. Paul.
作者：	Hoffman, G.; Littleton, P.; Mallela, J.
关键词：	Bridges; Highways; Local Transportation; Minnesota; Motorists; Roadway Users; Traffic Impacts; Transportation Monitoring System; Transportation System; Transportations Safety
摘要：	As part of a national initiative sponsored by the Federal Highway Administration under the Highways for LIFE program, the Minnesota Department of Transportation (Mn/DOT) was awarded a $1 million grant to demonstrate the use of proven, innovative technologies to deliver a $30.7 million project in less time than conventional construction. This report documents the use of full closure to reconstruct a four-lane, 2-mile (approximate) section of Trunk Highway 36 in North St. Paul. The finished project has enhanced transportation safety and reduced travel times by eliminating six at-grade intersections. Local transportation has been improved with newly constructed crossover bridges and a pedestrian bridge. This report discusses the use of full closure on a major highway reconstruction project, which until now has not been used on a main thoroughfare in Minnesota. The project incorporated A+B contract bidding, a locked incentive date specification, and lane rental as an innovative approach to minimize traffic disruption by getting the highway rebuilt and open to traffic as early as possible. The result was that the newly reconstructed roadway was completely open to traffic in 145 days, 65 percent sooner than if traditional staged construction had been used. During full closure, traffic was diverted to detour routes, which presented the opportunity to use an intelligent transportation system, integrated with the existing Mn/DOT traffic monitoring system, to route motorists around the construction. Mn/DOT also explored the use of intelligent compaction equipment to expedite site work and lightweight deflectometers for acceptance testing, a first for Minnesota. While not a recent innovation, machine control using Global Positioning System technology was used extensively on this project and was a key component in streamlining grading operations. Completely closing the highway to traffic, even for a short time, increased costs associated with diverting motorists, but it reduced
报告类型：	科技报告