Speed limits were increased in Utah and other States after repeal of the national maximum speed limit law (NMSL) in 1995. This study analyzed effects of the increased speed limit on Utah highways on crash rates, fatality crash rates, and injury crash rates. Annual (1992-1999) rates of crashes, fatality crashes, and injury crashes for the following highway categories were calculated: urban Inter...

connector proteins have been discovered that associate Elaine Fuchs* and Yanmin Yang with multiple cytoskeletal networks, integrating old Howard Hughes Medical Institute functions and creating new ones. As the roles of these Department of Molecular Genetics connectors unravel, it has become increasingly clear and Cell Biology that they are tailored to suit the tissue-specific needs The Universi...

because of the dispersion of activities in big cities, employing highways as the most important connecting way is indispensable. in today world, highways are connection arteries of cities transporting people to their social activities. because of continual use of highway, their walls prepare a context for conveying many social, cultural, economic, etc concepts. that is why most economic promoti...

Lean Construction (LC) is under the spotlight to improve the overall performance of civil construction projects in England. A strategic target of public clients is to effectively extend the current LC efforts, which have been mainly led by large companies to date, across small-medium sized enterprises (SMEs). This paper presents a summary of the initial findings of a research effort aimed at un...

In this paper we consider the problem of constructing optimal highways. For two points p and q in the plane, a line h—the highway—and a real v > 1, we define the travel time (also known as the City distance) from p and q to be the time needed to traverse a quickest path from p to q, where distances are measured in the Manhattan (i.e. the L1-) metric, and the speed on h is v and elsewhere 1. Giv...

In recent years in Japan, there have been many debates of setting highway toll charges as a part of policy discussions. However, although these debates should be analyzed objectively based on quantitative analysis, it cannot be denied that the psychological impact of the proposals is being given more priority. Considering that highways are a type of public infrastructure, it is appropriate that...

This paper explores the notion and usefulness of nonstationary velocity profiles for high priority emergency vehicle transit on automated highways. These profiles are intended for use in the link layer of the hierarchical control architecture defined by the California Partners for Automated Transit and Highways (PATH) program. A non-stationary velocity profile which can be used to circulate tra...