نتایج جستجو برای: including adaptive transit

تعداد نتایج: 1172368  

Journal: :AJR. American journal of roentgenology 1981
D Norman L Axel W H Berninger M S Edwards C E Cann R W Redington L Cox

Rapid sequence computed tomography (CT) scanning has many potential applications in studying intracranial physiologic events. However, visual inspection of these rapid sequence scans fails to extract the large amount of information inherent in the digital data. The concept of corrected mean transit time applied to rapid sequence scans after intravenous bolus injection of contrast material provi...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2009
Agata Fronczak Piotr Fronczak

We study the biased random-walk process in random uncorrelated networks with arbitrary degree distributions. In our model, the bias is defined by the preferential transition probability, which, in recent years, has been commonly used to study the efficiency of different routing protocols in communication networks. We derive exact expressions for the stationary occupation probability and for the...

2009
Martin Trépanier Catherine Morency Bruno Agard

Smartcard automated fare collection systems (SCAFC) for transit have been considered primarily for their administrative function of controlling access to the service and for revenue management. However, it is likely that data from these systems also can be used to describe both transport supply and demand. This article illustrates the use of smartcard data to estimate various transit performanc...

The undesired operation of zone 3 may be one of the most conspicuous protective relay features due to the incorrect zone 3 relay operations which have been conducive to the severity of blackouts. Therefore, determining the accurate zone 3 setting of the distance relay is deemed to be necessary. This paper focuses on the development of a new technique for calculating zone-3 setting of distance r...

2014
Gao Jian Zhao Peng Zhang Hui Wuhong Wang

To the problem of being lack of transit network hierarchy theory, a research on public transit network hierarchy optimization based on residential transit trip distance is conducted. Firstly, the hierarchy standard of transit network is given, in addition, both simulating electron cloud model and Rayleigh distribution model are used to fit the residential transit trip distance. Secondly, from t...

2004
Todd Litman

This report evaluates criticism of rail transit systems. It examines claims that rail transit is ineffective at increasing public transit ridership and improving transportation system performance, that rail transit investments are not cost effective, and that transit is an outdated form of transportation. It finds that critics often misrepresent issues and use biased and inaccurate analysis. Th...

2005
Qisheng Pan Li Ma

Public transit provides important services for urban commuters and transit dependent population. A key objective of most public transit projects is to increase regional transit ridership and mode share. Traditional survey has been widely used by a transit project to estimate the change of ridership. In a large metropolitan area with multiple public transit modes, it is costly and difficult to c...

Journal: :international journal of industrial engineering and productional research- 0
a. shariat mohaymany s.m.mahdi amiripour

local bus network is the most popular transit mode and the only available transit mode in the majority of cities of the world. increasing the utility of this mode which increases its share from urban trips is an important goal for city planners. timetable setting as the second component of bus network design problem (network route design timetable setting vehicle assignment crew assignment) hav...

2006
Young-Jae Lee

Transit network conditions change everyday. While those changes should be considered for modifying a transit network, formulating and optimizing the whole transit network may be a costly, difficult task. This article uses a developed transit network design model to examine how optimal transit networks should be developed based on changes in input elements of the transit network. Three major inp...

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