Sökning: "road infrastructure"
Visar resultat 1 - 5 av 234 avhandlingar innehållade orden road infrastructure.
1. Tyre/road interaction : A holistic approach to the functional requirements of road surfaces regarding noise and rolling resistance
Sammanfattning : Increased fuel consumption, increased greenhouse gas emission, diminishing real-estate prices and increased health issues are some of the negative effects on the climate, on the environment and on the society from tyre/road rolling resistance and noise. The first two aspects are affected by energy dissipation in the tyre/pavement contact and are related to rolling resistance. LÄS MER
2. Life Cycle Costing in Road Planning and Management : A Case Study on Collision-free Roads
Sammanfattning : Construction of infrastructure does not only mean large capital investments but also future costs to operate and maintain these assets. Decision making in planning and design of roads will impact the need of future operation and maintenance activities. LÄS MER
3. Tire/road noise : Studies of the mechanisms of noise generation, methods of measurement and road surface characterization
Sammanfattning : .... LÄS MER
4. 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
5. Modelling and evaluation of the effects of traffic safety measures Comparative analysis of driving assistance systems and road infrastructure
Sammanfattning : Improvement of road traffic safety is an important policy issue. Various categories of meas-ures are available to effectuate this. The thesis focuses on two categories: road infrastructure and driv-ing assistance systems. LÄS MER