Visar resultat 1 - 5 av 846 avhandlingar innehållade ordet Transportation.
Sammanfattning : Neither the critical role that transportation plays for economic activities nor its negative external effects can be denied. At the same time, the resources required to sustain and develop the transportation system to an adequate degree and at the required pace are limited. LÄS MER
Sammanfattning : In transportation systems in general the issue of overcapacity coupled with low resource utilization has been identified for some time now. It has also been shown that the growth in transportation demand in the past is not absorbed by the existing overcapacity; rather the low levels of resource utilization are maintained. LÄS MER
3. Energy transition in transportation : Applying TIMES-based energy system optimisation models to sub-national levels
Sammanfattning : Transportation is embedded in the fabric of society and a key enabler of socio-economic development, but it is also a major source of carbon dioxide (CO2) and local air pollution (AP). Cities collectively account for around three quarters of total energy-related CO2 emissions, and the negative health impacts from local APs are most felt in dense urban environments. LÄS MER
Sammanfattning : This thesis presents research regarding the impact differences in goods type have on the control of a transportation process. It also explores how the object-oriented family of methods are used and can be used in analysing and designing transportation systems. LÄS MER
Sammanfattning : Freight transportation operations are becoming increasingly complex due to an escalating number of actors and infrastructure capacity bottlenecks. Today’s transportation operations rely on static procedures instead of being actively controlled to achieve effective synchronization of the actors’ operations, resulting in slow responses to events and long waiting times in the transportation setup. LÄS MER