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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
Persistent link: https://www.econbiz.de/10010867413
Accurately estimating Origin–Destination (OD) trip tables based on traffic data has become crucial in many real-time traffic applications. The problem of OD estimation is traditionally modeled as a bilevel network design problem (NDP), which is challenging to solve in large-scale networks. In...
Persistent link: https://www.econbiz.de/10010595248
Regular case-control sampling is an extremely common design used to generate data to estimate effects of exposures or treatments on a binary outcome of interest when the proportion of cases (i.e., binary outcome equal to 1) in the population of interest is low. Case-control sampling represents a...
Persistent link: https://www.econbiz.de/10005246572
I estimate the gradient among children 0 to 14 years old across different age groups using data from Indonesia. I find … that while the gradient is strong among the very young, it gets weaker and almost disappears among children older than 6. I … find that unequal mortality of children by socioeconomic status depresses the gradient among children 3 years old or …
Persistent link: https://www.econbiz.de/10009365086
for contemporary U.S. immigrants and evaluate whether their SES-BMI gradient patterns are shaped by underlying gradients … the United States, however, inverse gradient patterns are driven largely by higher weights among low-SES individuals …
Persistent link: https://www.econbiz.de/10010845376
and Wu [4] to define the discrete gradient of a function on a triangular mesh. We also use our new method to define the …
Persistent link: https://www.econbiz.de/10010869906
the position from reflection and transmission data by using a conjugate gradient method. In the second problem, the …
Persistent link: https://www.econbiz.de/10010870089
and higher mimetic operators, divergence and gradient. These operators have the same order of accuracy in the interior as …
Persistent link: https://www.econbiz.de/10010870178
We study the effect of gravitational force upon traffic flow on a highway with sag, uphill, and downhill. We extend the optimal velocity model to take into account the gravitational force which acts on vehicles as an external force. We study the traffic states and jamming transitions induced by...
Persistent link: https://www.econbiz.de/10010872492