Showing 1 - 10 of 15
This paper proposes a generalized model to estimate the peak hour origin–destination (OD) traffic demand variation from day-to-day hourly traffic counts throughout the whole year. Different from the conventional OD estimation methods, the proposed modeling approach aims to estimate not only...
Persistent link: https://www.econbiz.de/10010931641
This paper proposes a novel traffic assignment model considering uncertainties in both demand and supply sides of a road network. These uncertainties are mainly due to adverse weather conditions with different rainfall intensities on the road network. A generalized link travel time function is...
Persistent link: https://www.econbiz.de/10005228174
This paper proposes a stochastic user equilibrium assignment model for congested transit networks, together with a solution algorithm. A mathematical programming problem is formulated, that is equivalent to the stochastic user equilibrium assignment model for congested transit system. When the...
Persistent link: https://www.econbiz.de/10005052553
Statistical models for the estimation of Origin-Destination (OD) matrix from traffic counts that consider explicitly the presence of randomness in the link choice proportions have been developed recently. These models are more receptive to the fluctuations in the observations due to measurement...
Persistent link: https://www.econbiz.de/10005228188
The use of statistical modeling in the estimation of Origin-Destination (OD) matrix from traffic counts is reviewed. In particular, statistical models that consider explicitly the presence of measurement and sampling errors in the observed link flows are discussed. This paper proposes treating...
Persistent link: https://www.econbiz.de/10005279748
Persistent link: https://www.econbiz.de/10005052543
Horowitz (1989) proposed a modification of Evans' algorithm for solving the combined trip distribution and assignment model with a reduction in computational time and memory, but without proof of convergence. It is shown here that his modified algorithm does not always converge to the optimal...
Persistent link: https://www.econbiz.de/10005279670
Dispersion of traffic flow on urban road segments is often described by some typical statistical models such as the normal distribution model and the geometric distribution model. These probability-based models can fit traffic flow well under ideal physical environments but may not work...
Persistent link: https://www.econbiz.de/10005191503
This paper presents a new model which studies probability distributions of queue lengths at fixed time traffic signals. It extends Haight's model for Poisson arrivals that the arrival distribution during the effective red period is general and the headway between two successive departures is not...
Persistent link: https://www.econbiz.de/10005191610
This paper presents a conceptual activity-based and time-dependent traffic assignment model. The temporal utility profiles of activities are employed to formulate the temporal activity choice behavior of individuals as a multinomial logit model. Route choice behavior is then described as the...
Persistent link: https://www.econbiz.de/10005191649