For economic evaluation of a highway development project, multiple criteria must be considered on a timeframe longer than the project implementation interval and a geographical area larger than the project zone. In this study, a framework is proposed based on the Network-Level Life Cycle Cost Analysis (NL-LCCA) to assess the effect of highway development projects on mobility, safety, economy, e...

Empirical data and statistical models are used to answer the question of where the new highway routes are most likely to be located. High-quality land-use, population distribution and highway network GIS data for the Twin Cities Metropolitan Area from 1958 to 1990 are developed for this study. The highway system is classified into three levels, Interstate highways, divided highways, and seconda...

In this paper, we describe a mathematical framework for modeling and simulation of highway traac from a wireless network's point of view. The global movement of vehicles on a highway is expressed by partial diierential equations. The highway may have exits and entrances as well as a time and location dependent velocity proole. In addition to movement, also the communication activity of the vehi...

The goal of this paper is to evaluate whether the incentives incorporated in toll highway concession contracts in order to encourage private operators to adopt measures to reduce accidents are actually effective at improving safety. To this end, we implemented negative binomial regression models using information about highway characteristics and accident data from toll highway concessions in S...

Improved understanding of scour and sedimentation processes near and at highway bridges is dependant on collecting reliable field data. Field data collection programs, however, have been hindered by inadequacies in instrumentation and measurement technologies. Through a coordinated program of research, the Federal Highway Administration (FHWA), State Highway Agencies (SHAs), National Cooperativ...

AND SUMMARY Autonomous Intelligent Vehicle Initiative (IVI) systems (which include in-vehicle forwardand side-looking sensors) can be supplemented by vehicle-vehicle and vehiclehighway cooperative and, if possible, passive elements to comprise a “sensor-friendly” highway environment that would enhance the operational efficiency, and ultimately, the safety benefits of emerging IVI driver-assist ...

In this paper it is shown that recent progress in stochastic modelling and optimization in combination with advanced computer systems has now made it possible to improve the design and the maintenance strategies for infrastructure systems. The paper concentrates on highway networks and single large bridges. United States has perhaps the largest highway networks in the world with more than 6 mil...

Air samples were collected at a highway intersection, coastal location and suburban area in Taichung, Taiwan for the characterization of nitrate containing particulates (NCPs) in dry deposition from October 2002 to February 2003. Sampling was accomplished with a surrogate surface technique in non-raining days. Collecting tapes were precoated with nitron (C20H16N4) in a vacuum evaporator control...

IN T R O D U C T IO N The highway problem has been the subject of considerable discus­ sion during the past few years and has assumed proportions subject to national concern. This Road School is, in fact, a discussion of this Number One domestic problem. The interest of almost every individual in highways and their operation is increasing, and each year more high­ way technology is made availab...

Tolls are a recurring but not continuous feature in major highway financing policy in Spain. User tolls were the model used to finance the first expansion of the highway network, in the 60’s and early 70’s. The second wave of the highway network expansion took place in the late 80’s and early 90’s. The public budget was the usual source of funds used to pay for the highways built in this period...