Sökning: "30 50 road environment"
Hittade 4 avhandlingar innehållade orden 30 50 road environment.
1. Road Surface and Tyre Interaction : Functional Properties affecting Road Dust Load Dynamics and Storage
Sammanfattning : Luftburna partiklar (PM) är ett problem för människans hälsa, där flertalet samband mellan negativa hälsoeffekter finns mellan luftföroreningar finns, bland annat för respiratoriska sjukdomar, lungcancer och kardiovaskulära sjukdomar med flera. I länder där dubbdäck används, till exempel Sverige, Finland och Norge, och sandning av vägar och gator genomförs vintertid för att säkerställa god friktion kommer en betydande andel av partiklarna från vägslitage och nedkrossning av sand vilket bidrar till PM10. LÄS MER
2. Effects of Safety Measures for Pedestrians and Cyclists at Crossing Facilities on Arterial Roads
Sammanfattning : The principal aims of this thesis are to define suitable measures for safer pedestrian and cycle crossings on arterial roads, to implement these measures on a large scale and to acquire an insight into their effects on road users' safety, experiences, mobility and the environment, by creating a 30 km/h milieu at the above crossings. Two characteristically different types of measures, physical measures and variable message signs, based on three principles, lower speed, no priority and improved and relevant information, are tested within the framework of this project. LÄS MER
3. On the Relations between Driving Patterns, Exhaust Emissions and Network Characteristics in Urban Driving
Sammanfattning : The planning and design of street networks in cities influence driving behaviour and give rise to variations in driving patterns (i.e., speed and acceleration profiles) that affect exhaust emissions and fuel consumption. LÄS MER
4. An epidemiological study of non-fatal injuries in a Swedish county
Sammanfattning : The main objective of this thesis is to describe the epidemiological injury pattern (including both oral and bodily injuries) in a defined Swedish population. Analysis is performed in three steps: a general overview; a focus on oral and bodily injuries, Paper I, and on the most exposed age groups for tooth injuries (children and adolescents), Paper II; and exemplifying situational analyses of bicycle (Paper III) and pedestrian injuries (Paper IV), and school injuries Paper V. LÄS MER