scholarly journals Optimization of Parking Public Transport Vehicles in Ostrava

2015 ◽  
Vol 27 (1) ◽  
pp. 69-75 ◽  
Author(s):  
Dušan Teichmann ◽  
Michal Dorda ◽  
Helena Bínová ◽  
Martin Ludvík
Keyword(s):  
Mathematical Model ◽  
Public Transport ◽  
Transport Network ◽  
Parking Lots ◽  
Total Length

A typical trait of public transport is a spatially scattered demand. A route net that is operated by a carrier (or several carriers) has to be adapted to the demand. Public transport vehicles that are not used during a period of a day are usually parked in defined parking lots that have a given capacity. When the vehicle goes from the place where its schedule ends (usually a terminus of the last connection served by the vehicle) to the place where the vehicle should be parked, a non-productive journey occurs. The same occurs at the beginning of the vehicle schedule as well. The main goal of the paper is to present a mathematical model that enables minimization of the total length of all the non-productive journeys. Functionality of the proposed mathematical model was tested in the conditions of a real bus public transport network.

scholarly journals Algorithm for dynamic route assignment in complex street layouts

2019 ◽  
pp. 37-40
Author(s):  
М.В. Деркач ◽  
І.С. Скарга-Бандурова
Keyword(s):  
Mathematical Model ◽  
Public Transport ◽  
Graph Model ◽  
Transport Network ◽  
Key Points ◽  
Routing Techniques ◽  
Dynamic Route ◽  
Street Layouts

In some scenarios, public transport vehicles do not have permanently fixed routes that make it hard to implement optimal automatic routing techniques and use forecasting algorithms. To solve the problem of route destination, a mathematical model of the dynamic route assignment is developed. It is based on the graph model of the street layouts and includes the results of the arrival of vehicles in certain points. The proposed algorithm enables to dynamically recalculate the routes, depending on the intersection of the four types of nodes representing the key points of the transport network. A case study for the route assignment in city of Severodonetsk is discussed.

scholarly journals Evaluating Performance of Public Transport Networks by Using Public Transport Criteria Matrix Analytic Hierarchy Process Models—Case Study of Stonnington, Bayswater, and Cockburn Public Transport Network

2021 ◽  
Vol 13 (12) ◽  
pp. 6949
Author(s):  
Gang Lin ◽  
Shaoli Wang ◽  
Conghua Lin ◽  
Linshan Bu ◽  
Honglei Xu
Keyword(s):  
Sustainable Development ◽  
Public Transport ◽  
Public Transportation ◽  
Evaluation Criteria ◽  
Performance Standards ◽  
Transport Network ◽  
Process Models ◽  
Transport Infrastructure ◽  
Transport Networks ◽  
Ahp Model

To mitigate car traffic problems, the United Nations Human Settlements Programme (UN-Habitat) issued a document that provides guidelines for sustainable development and the promotion of public transport. The efficiency of the policies and strategies needs to be evaluated to improve the performance of public transportation networks. To assess the performance of a public transport network, it is first necessary to select evaluation criteria. Based on existing indicators, this research proposes a public transport criteria matrix that includes the basic public transport infrastructure level, public transport service level, economic benefit level, and sustainable development level. A public transport criteria matrix AHP model is established to assess the performance of public transport networks. The established model selects appropriate evaluation criteria based on existing performance standards. It is applied to study the Stonnington, Bayswater, and Cockburn public transport network, representing a series of land use and transport policy backgrounds. The local public transport authorities can apply the established transport criteria matrix AHP model to monitor the performance of a public transport network and provide guidance for its improvement.

Adaptive modulation in public transport network system with network coding

2012 ◽  
Author(s):  
Scott Carr Ken Lye ◽  
Shee Eng Tan ◽  
Zhan Wei Siew ◽  
Yit Kwong Chin ◽  
Kenneth Tze Kin Teo
Keyword(s):  
Network Coding ◽  
Public Transport ◽  
Adaptive Modulation ◽  
Transport Network ◽  
Network System

scholarly journals Optimization of Stochastic Lossy Transport Networks and Applications to Power Grids

2021 ◽  
Author(s):  
Alessandro Zocca ◽  
Bert Zwart
Keyword(s):  
Mathematical Model ◽  
Renewable Energy ◽  
Smart Grids ◽  
Transport Network ◽  
Power Grids ◽  
Performance Gain ◽  
Power Losses ◽  
Transport Networks ◽  
Trade Off ◽  
Stochastic Load

Motivated by developments in renewable energy and smart grids, we formulate a stylized mathematical model of a transport network with stochastic load fluctuations. Using an affine control rule, we explore the trade-off between the number of controllable resources in a lossy transport network and the performance gain they yield in terms of expected power losses. Our results are explicit and reveal the interaction between the level of flexibility, the intrinsic load uncertainty, and the network structure.

Sign in / Sign up

Export Citation Format

Share Document