Nature of Modeling Boundary Pedestrian Crashes at Zones

U.S. Highway 64 is a primary transportation route from the Outer Banks of North Carolina. The road bisects a network of federal, state, and privately managed conservation areas that provide habitat for black bear, red wolf (a federally endangered species), migratory birds, a diverse assemblage of herpetofauna, and numerous other species. The North Carolina Department of Transportation has plans to widen the highway from two to four lanes. The effects of increased habitat fragmentation and projected sea-level rise were significant concerns. Wildlife surveys were conducted from April 2009 to July 2010 to assess existing highway impacts. Roadkill and track surveys provided data on successful and unsuccessful road crossings. Roadkill data included 27,877 individuals of 113 species. From 31 track stations, 18 different species or taxa from 7,477 tracks were recorded. Spatial analysis of roadkill and track data revealed significant hot spots of wildlife activity. Results of field surveys and landscape analysis were used to determine candidate locations for wildlife crossings and other measures to reduce adverse effects of the proposed widening of the road. Recommendations included type of structure and design specifications according to site specifics and target species requirements

Sustainability assessment approaches for Intelligent Transport Systems: The state of the art

The appraisal of ITS systems has become increasingly important in order to capture their full range of potential impacts. The goal of this paper is therefore to assess the appropriateness of conventional transport appraisal models and tools for this task, particularly in reflecting the environmental and socio-economic impacts of ITS. These include the most common Environmental Systems Analysis tools (ESAT), which incorporate international standards and are of considerable importance in indicating sustainability. A review of how emerging methods relate to the goal of a successful transition to a low carbon future is reported, based on the literature. The appraisal of ITS is inherently uncertain due to the decentralised nature of Information Communication Technology (ICT), therefore a range of methods to capture this aspect are reviewed. The models, weights and methods are analysed concerning their ability to estimate sustainability performance, given the numerous configurations of ubiquitous technology that may comprise ITS services. Weighting methods are important in reflecting perceptions of how sustainability should be assessed. These can be incorporated by identifying, classifying and selecting one or more ESAT's based upon their suitability for a particular application. Finally, recommendations are given on which tools can be integrated to more comprehensively reflect the performance of ITS