INTRODUCTION Rail trails are elements of the built environment that support the Task Force on Community Preventive Services' recommendation to create, or enhance access to, places for physical activity (PA). The purpose of this study was to examine the associations between sociodemographic characteristics and perceptions of the built environment with the frequency, type, and duration of PA amon...

Rail transit with its high passenger capacity and high efficiency has become one of the preferred alternatives to automobile travel. This is evident in the increasing patronage of rail travel especially in urban areas. As a result, many railway stations experience high levels of pedestrian congestion especially during the morning and afternoon peak periods. Traditional design and evaluation pro...

With the fast development of urban transit system and natural gas industry, the Stray Current Corrosion (SCC) for buried gas pipeline has become more frequent in china. In this study, principle and characteristic of Stray Current (SC) resulting from rail transit system were introduced. Presently available SC testing methods, equipment and determination standards in china were summarized. For an...

'Safety culture' is identified in the literature as a critical element of healthy and safe workplaces. How can rail organizations ensure that consistently effective work health and safety cultures are maintained across the diversity of their operations? This paper reports on research that is currently underway in the Australian rail industry aimed at producing a Model of Best Practice in Safety...

The process of planning and constructing a new light rail system or freeway, setting an urban growth boundary, changing tax policy, or modifying zoning and land use plans is often politically charged. Our goal in the UrbanSim project is to provide tools for planners and stakeholders to be able to consider different scenarios — packages of possible policies and investments — and then, based on t...

Recent in situ observations during Critical Ionization Velocity (CIV) experiments under the CRIT project produced puzzling results, apparently at odds with current ClV theories. It is shown that incorporation in the theory of lower hybrid wave (LHW) instabilities of strong turbulence and finite size effects results in reconciliation of the theory with the observations.

While rail has been the focus of most planning for Transit Oriented Development (TOD), there has been recent interest in bus-related TOD with an emphasis on new bus rapid transit (BRT) systems in North and South America and Australia. This article takes a critical look at the strengths and challenges of bus-based transit systems compared to rail in relation to TOD. It includes a review of the l...

Fulfilling system integrated requirement of unitive resource management is the key issue of urban rail transit safety monitoring system. To solve this problem, firstly, this paper analyses the value chain of information flow. Then, it proposes alliance structure model and assesses method of compositive safety system. A model is also established for choosing system alliance with the aid of DEA a...

According to popular perception, public transit spreads crime. This belief is often a major reason for opposing expansion of urban mass transit systems. However, the existing empirical literature finds little evidence in support of this theory. We address this question using a novel identification strategy based on temporary, maintenance-related closures of stations in the Washington, DC rail t...