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Highway project selection and scheduling are traditionally treated as two separate problems in the literature. It is critical to investigate how to select and schedule M&R projects in a way that can maximize their benefit or effectiveness while minimizing the traffic impacts of work zones across project...

 

Highway assets, including traffic signs, traffic signals, light poles, and guardrails, are important components of transportation networks. They guide, warn, and protect drivers and regulate traffic. To manage and maintain the regular operation of the highway system, state departments of transportation...

 

Over the last two decades, the use of advanced scientific and data-driven statistical methods has been continuously evolving to reduce the frequency and severity of crashes on our roadways. The American Association of State Highway and Transportation Officials (AASHTO) Highway Safety Manual (HSM) was...

 

North Dakota crash reports show that nearly 82% of fatal crashes occurred on non-interstate rural roads over the past five years. A total of 5,535 driver observations were collected at 143 sites across 24 rural counties. Seat belt use was found to be significantly different on rural highways and in rural...

 

Not long after the advent of cars arose a conflict between moving traffic and residential livability. The typical response pushed traffic off residential streets and onto nearby arterial roads. With many researchers identifying traffic on residential streets as an underlying issue behind poor livability...

 

When one think of earthquakes the Mountain Plains Region does not come first to mind; rather, the West Coast, South America, Japan, and most recently Italy and Nepal can easily be pictured. According to the U.S. Geological Survey (USGS) the largest earthquake on record for Colorado occurred in 1882...

 

Improving roadway safety on Indian reservations requires a comprehensive approach. Limited resources, lack of crash data, and few cross-jurisdictions coordination has made it difficult for Native American communities to address their roadway safety concerns. A methodology to improve roadway safety has...

 

With the understanding that seat belts are a relatively low-cost safety device and are an easy primary protection for occupants in passenger vehicles, North Dakota has chosen to continue to measure seat belt use on non-interstate rural roads. Understanding tendencies and trends in seat belt use on these...

 

The trucking industry continues to contribute significantly to the economy of the United States. The surface transportation system has been a critical component for the movement of goods and services by the trucking industry across the country. Recent decades have seen substantial growth in freight miles...

 

This document presents the application of the Highway Safety Manual (HSM) for rural local two-lane two-way highway segments in South Dakota. The calibration was based on three-year (2009-2011) crash data from 657 roadway segments constituting more than 750 miles of roadways. The calibration process includes...

 
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