Transportation network analysis
The fabric of all societies is held together by networks of various kinds, such as water supply, energy supply, sewage disposal, communication and, perhaps most importantly, transportation. Transportation Network Analysis is concerned primarily with the spatial, but also the temporal, nature of the movement of people and freight across land, where the movement is channelled onto roads or railways. The road and rail infrastructure constitute the transportation network while the movement of people and freight constitute the flows on the network. Providing a coherent theoretical framework, this book focuses on three interdependent aspects of transportation networks: state estimation the estimation of path flows, vehicle queues, stops and delays; route choice link cost functions and the equilibrium principle; and network design traffic signal control, link design and link insertion or deletion. While the treatment of transportation networks is general and not specific to one mode of transport, the emphasis is on private transport by road networks with extensions to public transport indicated where appropriate. Numerous examples illustrate both definitions and algorithms.
6 other sections not shown
Other editions - View all
active capacity constraints angle cost functions approach behaviour bi-level programming Chapter column congested connecting convergence convex corresponding cut sets demand density deterministic user equilibrium dual variables entropy equal equilibrium link flows equivalent optimisation problem expected minimum feasible FIFO flow measurements implies incidence matrix increasing iterative balancing Jacobian least cost paths linearly independent link capacity link choice proportions link cost functions link flow measurements link flows link-path incidence matrix ln(h logit assignment logit model maximising method of successive network design problem node or centroid Note objective function optimality conditions optimum origin-destination pair path choice model path costs path flow estimator path flows period positive definite queue queuing shadow prices small changes solution speed Step 1 initialisation stochastic user equilibrium successive averages traffic assignment transportation network trip cost trip table trip-makers unique units of flow unmeasured user equilibrium assignment variational inequality vehicles per second zero
Il paradigma del policentrismo. Conoscenza e trasformazione del territorio ...
No preview available - 1999