Results 11 to 20 of about 20,101,928 (317)

Copula-Based Travel Time Distribution Estimation Considering Channelization Section Spillover

open access: yesIEEE Access, 2020
Travel time is inherently uncertain in urban networks due to volatile traffic flows, signal controls, bus stops and disturbances from pedestrians. An effective way to characterize such uncertainty is by estimating Travel Time Distribution (TTD). However,
Yi Yu   +3 more
doaj   +2 more sources

Modelling arterial travel time distribution using copulas [PDF]

open access: yes2020 IEEE 23rd International Conference on Intelligent Transportation Systems (ITSC), 2020
The estimation of travel time distribution (TTD) is critical for reliable route guidance and provides theoretical bases and technical support for advanced traffic management and control. The state-of-the art procedure for estimating arterial TTD commonly assumes that the path travel time follows a certain distribution without considering segment ...
Samara, Adam   +2 more
openaire   +6 more sources

Expansion and contraction of the flowing stream network alter hillslope flowpath lengths and the shape of the travel time distribution [PDF]

open access: yesHydrology and Earth System Sciences, 2019
Flowing stream networks dynamically extend and retract, both seasonally and in response to precipitation events. These network dynamics can dramatically alter the drainage density and thus the length of subsurface flow pathways to flowing streams.
H. J. I. van Meerveld   +7 more
doaj   +2 more sources

Large-network travel time distribution estimation for ambulances [PDF]

open access: yesEuropean Journal of Operational Research, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bradford S. Westgate   +3 more
openaire   +2 more sources

Bayesian Nonparametric Model for Estimating Multistate Travel Time Distribution

open access: yesJournal of Advanced Transportation, 2017
Multistate models, that is, models with more than two distributions, are preferred over single-state probability models in modeling the distribution of travel time.
Emmanuel Kidando   +3 more
doaj   +2 more sources

Exploring Travel Time Distribution and Variability Patterns Using Probe Vehicle Data: Case Study in Beijing

open access: yesJournal of Advanced Transportation, 2018
Exploring travel time distribution and variability patterns is essential for reliable route choices and sophisticated traffic management and control. State-of-the-art studies tend to treat different types of roads equally, which fails to provide more ...
Peng Chen   +3 more
doaj   +2 more sources

Estimating Travel Time Distribution under Different Traffic Conditions

open access: yesTransportation Research Procedia, 2014
AbstractIncreasing mobility and congestion results in an increase in travel time variability and in a decrease in reliability. Reliability becomes an important performance measure for transportation facilities. A variety of performance measures have been proposed to quantify it. Many of these indicators are based on percentiles of travel time.
Guessous, Younes   +3 more
openaire   +4 more sources

Estimation of Urban Link Travel Time Distribution Using Markov Chains and Bayesian Approaches

open access: yesJournal of Advanced Transportation, 2018
Despite the wide application of Floating Car Data (FCD) in urban link travel time and congestion estimation, the sparsity of observations from a low penetration rate of GPS-equipped floating cars make it difficult to estimate travel time distribution ...
Wenwen Qin, Meiping Yun
doaj   +2 more sources

Catchment travel time distributions and water flow in soils [PDF]

open access: yes, 2011
Many details about the flow of water in soils in a hillslope are unknowable given current technologies. One way of learning about the bulk effects of water velocity distributions on hillslopes is through the use of tracers.
Russo D   +33 more
core   +5 more sources

The cost of bus travel time variability [PDF]

open access: yes, 2006
The reliability of bus systems is a vital issue on the transport agenda, since urban areas are yearning for high quality alternatives for the private car. A key indicator of reliability is a low level of day-to-day travel time variability (TTV).
Hollander, Yaron
core   +7 more sources

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