Pricing of roadways opens doors for infrastructure financing, and congestion pricing seeks to address inefficiencies in roadway operations. This paper takes a cost-benefit approach to illuminate how the costs of infrastructure can be offset via pricing, while ascertaining the welfare impacts of flat-toll, standard congestion pricing, and credit-based congestion pricing policies. While most road...

In recent years, with the extension of coal mine at depth, rock bursts are more and frequent. Therefore, research roadway support pressure relief has become key to prevent burst. this paper, primary high strength hydraulic fracturing measures studied analysed. The emphasizes matching characteristics materials, strengthen protection active roadway, realize an integrated system. Considering stron...

OBJECTIVES Few low income countries have emergency medical services to provide prehospital medical care and transport to road traffic crash casualties. In Ghana most roadway casualties receive care and transport to the hospital from taxi, bus, or truck drivers. This study reports the methods used to devise a model for prehospital trauma training for commercial drivers in Ghana. METHODS Over 3...

In this paper, we investigate predictive control approaches to the problem of roadway departure prevention via steering and braking. We assume a sensing infrastructure detecting road geometry and consider a two layers architecture consisting of a threat assessment and an intervention layer. In particular, the upper threat assessment layer detects the risk of roadway departure or vehicle instabi...

BACKGROUND Injury risk from car-bicycle collisions is particularly high among youth with attention-deficit hyperactivity disorder (ADHD). Here, we capitalized on advances in virtual environment technology to safely and systematically examine road-crossing behavior among child cyclists with and without ADHD. METHODS Sixty-three youth (26 with ADHD, 37 non-ADHD controls) ages 10-14 years crosse...

Aiming at the problem of large-scale deformation track and alleys in East Second Mining Area, numerical analysis method is used to analyze stress law roadway. The results show that critical depth roadway 800m, shear deep about 8.7MPa left right shoulders, vertical increases sharply range 0~5.5m from center roadway, 6~ peak value reached within 8m, plastic zone roof 2.6m, zones are 5.2m 5.4m, re...

Design consistency refers to the conformance of a highway's geometry with driver expectancy. Drivers make fewer errors in the vicinity of geometric features that conform with their expectations. Techniques to evaluate the consistency of a design documented within this report include alignment indices, speed distribution measures, and driver workload. Alignment indices are quantitative measures ...

This project explored a new approach in detecting vehicles on a roadway by making a roadway section itself a traffic flow detector. Sections of a given roadway are paved with carbon-nanotube (CNT)/cement composites; the piezoresitive property of carbon nanotubes enables the composite to detect the traffic flow. Meanwhile, CNTs can also work as the reinforcement elements to improve the strength ...

BACKGROUND Living near major roadways has been associated with an increase in respiratory symptoms, but little is known about how this relates to airway inflammation. OBJECTIVE We assessed the effects of living near local residential roadways based on objective indicators of ventilatory function and airway inflammation. METHODS We estimated ambient air pollution, resolved to the level of th...

In this study, two-state Markov switching multinomial logit models are proposed for statistical modeling of accident-injury severities. These models assume Markov switching over time between two unobserved states of roadway safety as a means of accounting for potential unobserved heterogeneity. The states are distinct in the sense that in different states accident-severity outcomes are generate...