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Traffic Engineering Projects
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Speed Limit Study in City of Taylor
The City of Taylor, Michigan, is working with Wade Trim, the U.S. DOT Federal Highway
Administration (FHWA), and the National Highway Traffic Safety Administration (NHTSA)
to evaluate speed limits on six City roadways. The City is the only city in the country
to receive funding for this demonstration project. The program objective is to determine
the effects of posting speed limits that are rationally established, well-publicized, and
rigorously enforced. Wade Trim is compiling speed information and other engineering data
and will submit recommendations in mid-2004. If the City approves speed limit changes,
the next study phases of education and enforcement will begin.
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Study of Speed Limits in British Columbia
Wade Trim completed a comprehensive analysis of speed zones on
approximately 11,000 km of rural Provincial highways in British
Columbia, Canada. We also reviewed the practices used by the Ministry
of Transportation to determine the speed limits. We collected traffic
volume, vehicle speed, geometric, land use, and crash data. A field
review was performed on approximately 5,000 km. We analyzed the
information to determine if speed limits are appropriate and
consistent and if there are areas where speed limits should be
raised, lowered or eliminated. Recommendations were presented to
improve safety and traffic operations through the application of
speed limits and other speed management techniques. Complete Report (840k pdf)
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Mack Avenue/Martin Luther King Boulevard Corridors
The City of Detroit, partnering with AAA Michigan and the Michigan Department
of Transportation, undertook a project to improve motorist safety at high
crash intersections in the City. Wade Trim completed traffic signal
modernization plans to modernize 26 intersections along the Mack Avenue/Martin
Luther King Corridor, one of the identified high-crash intersections. The 26
intersections varied from simple pre-timed, two-phase intersections to multi-phase
intersections with freeway service drives. As part of a team, Wade Trim has completed
two large traffic signal modernization projects for the City with a total of 48 traffic signals.
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