Abstract Professionals should aim to significantly reduce greenhouse gas (GHG) emissions by implementing the best road construction technologies develop low-carbon projects. Although traffic loads vary over length, environmental impacts are assessed based on average values of loads. Consequently, there is a gap between reality and calculated with fixed load. This paper aims assess in terms two ...

Generalization is certainly one of the most important current issues in cartography, with particular emphasis being placed on its automation. This paper considers the automation of generalization applied to road networks primarily urban roads. In this context car navigation is considered as main subject. As Timpf et al. (1992) stated car navigation require data at a wide range of scales and at ...

Reducing road fatalities is a key policy goal in several countries and there vast literature on what factors affect safety performance. Nonetheless, limited evidence whether highway concessions Public Private Partnerships (PPP) can bring benefits, despite the growing number of adopting this type to finance manage infrastructure. In paper, we use difference-in-differences approach examine causal...

OBJECTIVES Traffic crashes are a leading cause of deaths and injuries in Pakistan. The World Health Organization (WHO) estimates that approximately 30,131 people die in road crashes annually on Pakistani roads (WHO 2013). The use of seat belts can be effective in reducing road crash fatalities in Pakistan but under existing seat belt laws, seat belt use is mandatory only for drivers and is limi...

Abstract Monitoring on road bridges in Germany is rare and mostly designed to deal with existing damages deficits, as a survey of the Federal Ministry Digital Transport has shown 2020. Other use cases are monitoring support structural inspection, monitor significant structures, or impact monitoring. The objectives, benefits examples various described present article. results most useful when th...

BACKGROUND Anecdotal observations and early airplane and helicopter tracking studies suggest that pigeons sometimes follow large roads and use landmarks as turning points during their homeward journey. However, technical limitations in tracking pigeon routes have prevented proof. RESULTS Here, we present experimental and statistical evidence for this strategy from the analysis of 216 GPS-reco...

Long-term traffic intensity is among core characteristics that determine main parameters while developing projects for construction of new highways. The long-term influences estimated speed, pavement design, total number lanes, width lanes and roadsides, longitudinal slope, radii horizontal curve, transverse convex concave curves regarding the profile, median strip, layout intersection or junct...

Freight and passenger transport are two main functions of the infrastructure and transportation networks in each country. It is required to efficiently utilize the transportation infrastructures to increase transportation-related performance measures. In this study, data envelopment analysis (DEA) model is used to evaluate performance of the Iranian provinces from the freight and passenger tran...