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Profile analysis of the LTPP SPS-6 site in Arizona
This report characterizes the longitudinal profiles of five pavement sections within the Arizona Specific Pavement Studies 6 project throughout their service life. This project was built and monitored as part of the Long-Term Pavement Performance Study. Road profile measurements were collected on...
Using naturalistic driving data to assess variations in fuel efficiency among individual drivers
Fuel consumption rates were studied from a naturalistic driving data set employing a fleet of identical passenger vehicles with gasoline engines and automatic transmissions. One hundred and seventeen drivers traveled a total of over 342,000 kilometers (213,000 miles), unsupervised, using one of the...
The future of personal transportation in megacities of the world
This study examined the future of personal transportation in megacities of the world. Of particular interest was the future role of personal vehicles. To span ranges of geographical, political, and economic factors, the following 15 megacities were included in the analysis: Chicago, New York,...
Hand positions and forces during truck ingress
Many truck drivers are injured each year due to falls while getting into and out of their vehicles. Design guidelines for steps and handholds are not based on biomechanical data and do not reflect a systems approach to design. As part of a broader effort to improve ingress/egress safety, a...
Modeling foot trajectories for heavy truck ingress simulation
Digital human figure models are a useful tool for simulation of driver ingress and egress for passenger cars, light trucks, and heavy commercial trucks. Simulation allows evaluation of the suitability of steps and handholds as a system. Accurate simulation requires detailed, validated algorithms to...
An injury risk curve for the hip for use in frontal impact crash testing
To facilitate the assessment of hip injury risk in frontal motor-vehicle crashes, an injury risk curve that relates peak force transmitted to the hip to the probability of hip fracture was developed by using survival analysis to fit a lognormal distribution to a recently published dataset of hip...
Adolescent motor vehicle crash risk what's needed to understand and reduce the risk?.
Motor vehicle crashes (MVCs) pose the largest threat to adolescent health in the US, yet until recently [1], books on adolescent health risks did not cover MVCs and other unintentional injuries. Despite this seeming lack of attention, research on teen MVCs has seen a robust evolution, with...

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