Results 31 to 40 of about 151,942 (250)

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

Development of Congestion Severity Index for Speed Humps Utilizing Fundamental Parameters and Clustering Techniques - A Case Study in India

open access: yesTransactions on Transport Sciences
Traffic congestion has widespread negative impacts on the environment, urban development, and road safety, leading to increased commute times and heightened incidents of road rage and accidents.
Malaya Mohanty   +2 more
doaj   +1 more source

A STUDY ON THE PILED-UP-TRAVELING-TIME AS AN ACCESSIBILITY INDEX OF INTERNATIONAL TRANSPORTATION

open access: yesDoboku Gakkai Ronbunshu, 1998
交通需要予測や空港選択など国際間交通について分析する際に, 空間的抵抗を表す指標としてこれまで用いられてきた「所要時間」は, 定義が不明確である上, 必ずしも適切に利便性を反映したものとはなっていないという問題点があった. そこで本研究では, 国際交通の分析のための指標として, 地点間の期待所要時間を意味する「積み上げ所要時間」の考え方に着目し, まず空港選択モデルと海外出国者発生量モデルを構築することによって, この指標の有効性を示す. そのうえで, これを用いて国内各都市の国際交通の利便性についての分析を行う.
Dai Nakagawa   +3 more
openaire   +2 more sources

Analysis the Reliability of Travel Time in Urban Corridors in Baghdad City

open access: yesJournal of Engineering
Travel-time reliability is a crucial performance measure for transportation systems. This research aims to estimate travel time and predict delay time on three routes in Baghdad city using GPS devices: Safi Al-Den Street, Palestine Street, and the Army ...
Shaymaa Hasan Taher   +1 more
doaj   +1 more source

Link-level travel time measures-based level of service thresholds by the posted speed limit

open access: yesTransportation Research Interdisciplinary Perspectives, 2019
Macroscopic parameters, such as density, volume-to-capacity ratio, and speed, are traditionally used to assess the level of service (LOS) of freeway/expressway or arterial road links.
Swapneel R. Kodupuganti   +1 more
doaj   +1 more source

Therapeutic Apheresis in Nigeria: A Multi‐Center Summary of Abstracts From the Inaugural Nigerian Society for Apheresis Scientific Meeting

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Therapeutic apheresis (TA) is an established treatment modality for hematologic, neurologic, and immunologic disorders, yet access remains severely limited in sub‐Saharan Africa. Donor apheresis, including platelet apheresis collection from healthy donors, represents an important complementary modality supporting blood product ...
Nosa Bazuaye   +33 more
wiley   +1 more source

Bus Operation Monitoring Oriented Public Transit Travel Index System and Calculation Models

open access: yesAdvances in Mechanical Engineering, 2013
This study proposed a two-dimensional index system which is concerned essentially with urban travel based on travel modes and user satisfaction. First, the public transit was taken as an example to describe the index system establishing process.
Jiancheng Weng   +3 more
doaj   +1 more source

Indexing Trajectories for Travel-Time Histogram Retrieval.

open access: yes, 2019
A key service in vehicular transportation is routing according to estimated travel times. With the availability of massive volumes of vehicle trajectory data, it has become increasingly feasible to estimate travel times, which are typically modeled as probability distributions in the form of histograms.
Robert Waury   +4 more
openaire   +2 more sources

Modeling Travel Time Reliability of Road Network Considering Connected Vehicle Guidance Characteristics Indexes [PDF]

open access: yesJournal of Advanced Transportation, 2017
Travel time reliability (TTR) is one of the important indexes for effectively evaluating the performance of road network, and TTR can effectively be improved using the real-time traffic guidance information. Compared with traditional traffic guidance, connected vehicle (CV) guidance can provide travelers with more timely and accurate travel information,
Jiangfeng Wang   +4 more
openaire   +2 more sources

Forecasting the Dialysis Burden in Japan: Validation‐Based Projections of Prevalence and Incidence Through 2050

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Japan has one of the highest dialysis prevalence rates worldwide and a shrinking, aging population. Whether dialysis burden has entered a sustained post‐peak phase or whether recent declines partly reflect pandemic‐related disruptions remains uncertain.
Hatice Şahin   +2 more
wiley   +1 more source

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