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The San Francisco pedestrian volume modeling process refined the methodology used to develop previous intersection-based models and incorporated variables that were tailored to estimate walking activity in the local urban context. The methodology included two main steps. First, manual and...
Persistent link: https://www.econbiz.de/10010817629
Better data on pedestrian volumes are needed to improve the safety, comfort, and convenience of pedestrian movement. This requires more carefully-developed methodologies for counting pedestrians as well as improved methods of modeling pedestrian volumes. This paper describes the methodology used...
Persistent link: https://www.econbiz.de/10010817664
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This dissertation addresses the question of how particular forms of metropolitan development affect travel patterns, a question long of concern to planners but recently the subject of a heated debate. Critics identify sprawling, low-density, single-use, automobile-dependent suburban development...
Persistent link: https://www.econbiz.de/10010676910
The question of how particular forms of metropolitan development affect travel patterns has long been of concern to planners but has recently been at the centre of a heated debate. Much of this debate has focused on the effects of suburbanization in particular, with some arguing that the...
Persistent link: https://www.econbiz.de/10010676919
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A large number of heavy-duty trucks idle a significant amount. Heavy-duty line-haul truck engines idle about 20-40% of the time the engine is running, depending on season and operation. Drivers idle engines to power climate control devices (e.g., heaters and air conditioners) and sleeper...
Persistent link: https://www.econbiz.de/10010676682
Government-industry R&D partnerships can play an important role in advancing the public interest. A widely cited example is the Partnership for a New Generation of Vehicles (PNGV). It was launched in 1993 by the Clinton Administration and three US automakers, with the goal of advancing the...
Persistent link: https://www.econbiz.de/10010676982
Vehicle fleets are a poorly understood part of the economy. They are important, though, in that they purchase a large share of light-duty vehicles and are often targeted by governments as agents of change. We investigate fleet purchase behavior, using focus groups, interviews, and mail and...
Persistent link: https://www.econbiz.de/10010677378