This study presents an integrated model and its solution algorithm for freeway corridor control during incident management. With a parallel arterial as the detour route, the proposed model aims to produce the optimal diversion rates from the freeway mainline to relieve the congestion at the incident segment, and concurrently adjust signal timings at the arterial intersections to best accommodat...

Heavy-duty trucks make up only 3% of the on-road vehicle fleet, yet they account for > 7% of vehicle miles traveled in the United States. They also contribute a significant proportion of regulated ambient emissions. Heavy vehicles emit emissions at different rates than passenger vehicles. They may also behave differently on-road, yet may be treated similarly to passenger vehicles in emissions m...

Due to the inherent discrete nature of sensing, interpolation is a key activity in sensing. Interpolation in urban computing faces an unprecedented inference issue that was not present in large scale traditional sensing environments. Obstacles such as buildings and walls are prevalent in urban sensing, and it is important to consider them in urban sensing interpolation. This paper introduces an...

Abstract. According to research to date, sprawl negatively affects the lives of millions of Americans annually. Fortunately, in the U.S., several states have designed and enacted growth management programs to curb its expansion. But have they been effective? Following up on work by just a handful of other research teams, we control for land area, population, fuel cost, per capita income, passen...

A principal challenge facing the urban economist is the formulation of a rigorous economic explanation for a variety of observed regularities in the spatial structures of real-world cities. The most obvious among these is the dramatic spatial variation in the intensity of urban land-use. Buildings are tall near the centers of most cities, while suburban structures embody much lower ratios of ca...

UNLABELLED Objective Despite differences in obesity and ill health between urban and rural areas in the UK being well documented, very little is known about differences in dietary patterns across these areas. The present study aimed to examine whether urban/rural status is associated with dietary patterns in a population-based UK cohort study of children. DESIGN Dietary patterns were obtained...

We present measurements of C1–C8 volatile organic compounds (VOCs) at four sites ranging from urban to rural areas in Hong Kong from September 2002 to August 2003. A total of 248 ambient VOC samples were collected. As expected, the urban and sub-urban sites generally gave relatively high VOC levels. In contrast, the average VOC levels were the lowest in the rural area. In general, higher mixing...

Research on developing mathematical and simulative models to evaluate performance of signalized arterials is still ongoing. In this paper, an integrated model (IM) based on Rakha vehicle dynamics and LWR model is proposed. The IM which imitates actuated performance measurement in signalized arterials is described using continuous timed Petri net with variable speeds (VCPN). This enables systema...

Scholars at home and abroad always focus on the low-carbon urban development. This paper described the basic theory of low-carbon city, analyzed the main factors effect the urban carbon emissions based on principal components analysis method, and established evaluation model to adapt to the development of low-carbon city. Finally, reasonable proposals have been proposed to provide scientific an...