Abstract

Thesis (MEng(TransportSystemsEng))--University of South Australia, 2006. There is a significant gap in the current understanding of issues relating to bicycle safety. The provision of cycling facilities has long been based on professional opinion and has rarely been based on academic research. In particular, it is widely considered that the provision of bicycle lanes improves safety for cyclists, however there is little or no research to confirm this belief. This thesis seeks to improve the current understanding of the impact of bicycle lanes on safety by utilising gap acceptance theory. Unsignalised T-junctions have been surveyed to gather gap data for the estimation and comparison of critical gaps. The findings of this research indicate that bicycle lanes may in fact reduce safety at unsignalised intersections.

Abstract

"jats:p"In this paper will be presented the influence of high temperatures on asphalt street pavement in terms of the influence of temperature on permanent deformations and thus the technical condition of the streets, comparable to the effects induced on extra-urban roads."/jats:p" "jats:p"Environmental factors are one of the mayn factors being assaulted in operation and road structures are very important in terms of the influence they can have on the state road transport technical infrastructure."/jats:p" "jats:p"Will be presented differences between urban road structures (streets) and extra-urban (road) both in terms of construction, the demands of traffic and environmental conditions to which they are subject."/jats:p" "jats:p"Road structures extra-urban and urban areas are required differently in terms of the environmental conditions of the location ambient different thereof, that is, when the streets they are inside localities and the built environment significantly affect road infrastructure, unlike in the case of roads where they are located just outside the settlements, reducing the effect of air currents accumulation pavement surface temperature."/jats:p" "jats:p"To demonstrate the influence of high temperatures on the pavement were conducted laboratory tests on asphalt mixtures in order to demonstrate the occurrence of reduction of physical characteristics, with adverse implications on the performance of applications similar to traffic. Document type: Article