Results 21 to 30 of about 2,716,785 (324)

The Role of Anomalous Transport in Long‐Term, Stream Water Chemistry Variability

open access: yesGeophysical Research Letters, 2023
We investigate the occurrence of anomalous (non‐Fickian) transport in an hydrological catchment system at kilometer scales and over a 36‐year period. Using spectral analysis, we examine the fluctuation scaling of long‐term time series measurements of a ...
Marco Dentz   +3 more
doaj   +1 more source

Estimation and Reliability Research of Post-Earthquake Traffic Travel Time Distribution Based on Floating Car Data

open access: yesApplied Sciences, 2022
To carry out the estimation and reliability research of post-earthquake traffic travel time, which has the great influence for efficient allocation of relief materials. By analyzing the relationship among floating vehicle trajectory, target path and road
Yongyi Li   +3 more
doaj   +1 more source

Bayesian Mixture Model to Estimate Freeway Travel Time under Low-Frequency Probe Data

open access: yesApplied Sciences, 2022
This study develops a novel estimation method under low-frequency probe data using the Bayesian approach. Given the challenges in estimating travel time under low-frequency probe data and prior distribution of the parameters in a traditional Bayesian ...
Hyungjoo Kim, Lanhang Ye
doaj   +1 more source

Modeling Uncertain Travel Times in Distribution Logistics

open access: yesApplied Sciences, 2023
Uncertainty quantification is a critical aspect of distribution logistics, particularly unpredictable travel times caused by traffic congestion and varying transportation conditions. This paper explores the modeling of uncertainty in dealing with travel times in the context of distribution logistics using the collocation method.
Khadija Ait Mamoun   +4 more
openaire   +2 more sources

An artificial neural network based method to uncover the value-of-travel-time distribution

open access: yesTransportation, 2020
This study proposes a novel Artificial Neural Network (ANN) based method to derive the Value-of-Travel-Time (VTT) distribution. The strength of this method is that it is possible to uncover the VTT distribution (and its moments) without making ...
Sander van Cranenburgh, M. Kouwenhoven
semanticscholar   +1 more source

From average travel time budgets to daily travel time distributions

open access: yesTransportation Research Record: Journal of the Transportation Research Board, 2006
An analysis of three travel surveys (in Belgium, France, and Great Britain) is used to investigate two conjectures by Kölbl and Helbing. The first one suggests a relation between mode choice and human energy expenditure for travel, which is assumed to be constant in time and space.
Hubert, Jena-Paul, Toint, Philippe
openaire   +3 more sources

Estimation of Travel Time Distributions in Urban Road Networks Using Low-Frequency Floating Car Data

open access: yesISPRS International Journal of Geo-Information, 2017
Travel times in urban road networks are highly stochastic. However, most existing travel time estimation methods only estimate the mean travel times, while ignoring travel time variances. To this end, this paper proposes a robust travel time distribution
Chaoyang Shi, Bi Yu Chen, Qingquan Li
doaj   +1 more source

A Method for Solving Reliability of Route Travel Time

open access: yesJournal of Function Spaces, 2020
In order to obtain an effective method for solving route travel time reliability, this paper proposes an effective new method to calculate travel time reliability using an independent link travel time function. Based on several months of historical data,
Hongwei Ma   +3 more
doaj   +1 more source

Distribution of Value of Time and Ways to Model Value of Time in Long-Range Planning Models [PDF]

open access: yes, 2018
As managed lanes (ML) become more integrated in regional urban networks with existing general purpose (GP) lanes, the distribution of travelers’ value of time (VOT) is becoming more important for transportation planning agencies to quantify in order to ...
Cheng, Christine W.
core   +1 more source

Spatially Distributed Characterization of Soil Dynamics Using Travel-Time Distributions [PDF]

open access: yesHydrology and Earth System Sciences, 2016
Abstract. Travel-time distributions are a comprehensive tool for the characterization of hydrological system dynamics. Unlike streamflow hydrographs, they describe the movement and storage of water inside and through the hydrological system. Until recently, studies using such travel-time distributions have generally either been applied to simple ...
Falk Heße   +4 more
openaire   +4 more sources

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