scholarly journals Matching the platform edge placement to rolling stock in existing tram systems on the example of Wroclaw

2017 ◽  
Vol 2017 (7) ◽  
pp. 12-23
Author(s):  
Igor Gisterek
Keyword(s):  
Optimal Solution ◽  
Rail Transport ◽  
Rolling Stock ◽  
Urban Rail ◽  
Basic Features ◽  
Vertical Gap

The work contributes to the development of the optimal solution of the horizontal and vertical gap between the platform edge and the tramway threshold in Wroclaw. General arguments for the development of urban rail transport have been described, and the basic features of an attractive system are discussed. Historical and current works focused on the position of the car floor with relation to the platform were collected, taking into account selected current foreign regulations. Suggested solutions possible for use in Wroclaw conditions were posed. The necessity of carrying out further detailed studies and considerations to be carried out in the second part of the work has been emphasized.

scholarly journals Constructions of platform edges of urban transport in complex cases

2020 ◽  
Vol 2020 (2) ◽  
pp. 1-10
Author(s):  
Igor Gisterek ◽  
Keyword(s):  
Optimal Solution ◽  
Rail Transport ◽  
Urban Transport ◽  
Proper Selection ◽  
Edge Structure ◽  
Public Transport System ◽  
Bus Stop ◽  
Basic Features ◽  
Complex Cases ◽  
Selection Of

The work is a continuation of the first part of 2017, where the contribution to the development of the optimal solution of horizontal and vertical distance between the platform edge and the tram threshold in Wrocław was presented. The general argumentation for the development of collective rail transport in cities was described, and the basic features of an attractive public transport system were also discussed. The historical and ongoing works were collected focusing on the location of the wagon floor in relation to the platform, taking into account selected foreign regulations. Presented are solutions that can be used in Wrocław conditions, describing more complex cases, complementing the first part: the possibility of expanding the carbody above the platform edge, tram and bus platforms or stops for tramtrains. The principles of creating an example algorithm for the proper selection of the edge structure of the platform have been proposed. The paper concludes with a summary and conclusions for both parts of the work. Keywords: Urban transport; Tramway; Platform; Tramway and bus stop

scholarly journals Integrated Optimization of Line Planning, Timetabling and Rolling Stock Allocation for Urban Railway Lines

2021 ◽  
Vol 13 (23) ◽  
pp. 13059
Author(s):  
Wenliang Zhou ◽  
Mehdi Oldache
Keyword(s):  
Solution Method ◽  
Optimal Solution ◽  
Rolling Stock ◽  
Line Planning ◽  
Integrated Optimization ◽  
Urban Rail ◽  
Train Operation ◽  
Rail Line ◽  
Stock Allocation ◽  
Model Features

In order to improve train operation planning from the two perspectives of enterprise operating costs and passengers’ travel time, this paper proposes an integrated optimization model of three sub-problems, namely line planning, timetabling and rolling stock allocation for urban railway transit lines based on passengers’ travelling demands and the constraints of the urban rail line. The model features dwelling time at stations, turnaround operations at terminal stations, entering/exiting depot operations and an assignment for passengers’ travelling flow. We propose a solution method based on a metaheuristic method that simulates annealing to generate an optimal solution for the overall problem using MATLAB. Finally, we use the example of Xi’an metro line one to demonstrate the performance of the model.

scholarly journals MATHEMATICAL MODELLING AS AN ELEMENT OF PLANNING RAIL TRANSPORT STRATEGIES

Transport ◽  
2021 ◽  
Vol 36 (4) ◽  
pp. 354-363
Author(s):  
Anna Borucka ◽  
Dariusz Mazurkiewicz ◽  
Eliza Łagowska
Keyword(s):  
Time Series ◽  
Development Strategy ◽  
Time Series Data ◽  
Arima Model ◽  
Exponential Smoothing ◽  
Rail Transport ◽  
Transport Infrastructure ◽  
Rolling Stock ◽  
Series Data ◽  
Passenger Transport

Effective planning and optimization of rail transport operations depends on effective and reliable forecasting of demand. The results of transport performance forecasts usually differ from measured values because the mathematical models used are inadequate. In response to this applicative need, we report the results of a study whose goal was to develop, on the basis of historical data, an effective mathematical model of rail passenger transport performance that would allow to make reliable forecasts of future demand for this service. Several models dedicated to this type of empirical data were proposed and selection criteria were established. The models used in the study are: the seasonal naive model, the Exponential Smoothing (ETS) model, the exponential smoothing state space model with Box–Cox transformation, ARMA errors, trigonometric trend and seasonal components (TBATS) model, and the AutoRegressive Integrated Moving Average (ARIMA) model. The proposed time series identification and forecasting methods are dedicated to the processing of time series data with trend and seasonality. Then, the best model was identified and its accuracy and effectiveness were assessed. It was noticed that investigated time series is characterized by strong seasonality and an upward trend. This information is important for planning a development strategy for rail passenger transport, because it shows that additional investments and engagement in the development of both transport infrastructure and superstructure are required to meet the existing demand. Finally, a forecast of transport performance in sequential periods of time was presented. Such forecast may significantly improve the system of scheduling train journeys and determining the level of demand for rolling stock depending on the season and the annual rise in passenger numbers, increasing the effectiveness of management of rail transport.

Urban Rail Transport Coordination Based on Travel Time Cost

ICTE 2015 ◽  
2015 ◽  
Author(s):  
Haochuan Yu ◽  
Zhongyi Zuo ◽  
Yi Cao
Keyword(s):  
Travel Time ◽  
Rail Transport ◽  
Time Cost ◽  
Urban Rail

Determinants of Train Service Costs in Metro Operations

2015 ◽  
Vol 2534 (1) ◽  
pp. 31-37 ◽  
Author(s):  
Ruben Brage-Ardao ◽  
Daniel J. Graham ◽  
Richard J. Anderson
Keyword(s):  
High Speed ◽  
Returns To Scale ◽  
Relative Weight ◽  
Rolling Stock ◽  
Substitution Effects ◽  
Passenger Rail ◽  
Operation Costs ◽  
Urban Rail ◽  
Metro Systems ◽  
The Cost

Research about service operation costs in the rail sector has usually focused on freight, high-speed, or national passenger rail, but has seldom included the study of the cost of urban rail (metro) rapid transit. This study analyzed the determinants of train service costs for a panel of 24 metro systems worldwide. The study used econometric modeling to assess the relative weight of each factor. Wages and electricity prices and consumption were found to have statistically significant elasticities and evidence of potential substitution effects between factors. Other factors, such as driver productivity, network length, percentage of rolling stock with air conditioning, and rolling stock age, also showed statistically significant elasticities. The study found evidence of strong returns to density and returns to scale in the provision of train service outputs (for example, car kilometers, passenger journeys, and train hours).

scholarly journals Methods of Noise and Vibration Protection on Urban Rail Transport

2017 ◽  
Vol 189 ◽  
pp. 829-835 ◽  
Author(s):  
E.P. Dudkin ◽  
L.A. Andreeva ◽  
N.N. Sultanov
Keyword(s):  
Rail Transport ◽  
Noise And Vibration ◽  
Vibration Protection ◽  
Urban Rail

High Speed Rail: Track Construction Considerations

2011 ◽  
Author(s):  
Blaine O. Peterson
Keyword(s):  
High Speed ◽  
Optimal Solution ◽  
Rolling Stock ◽  
High Speed Rail ◽  
Track Geometry ◽  
Slab Track ◽  
Passenger Rail ◽  
Construction Methods ◽  
Track System ◽  
Ballasted Track

This paper discusses general High Speed Rail (HSR) track geometry, construction and maintenance practices and tolerances. The discussion will reference several key international projects and highlight different construction methods and the track geometry assessments used to establish and ensure serviceability of a typical HSR system. Historically, established tighter tolerances of “Express” HSR (i.e. operating speeds greater than 240 km/h or 150 mph) systems have favored the use of slab track systems over ballasted track systems. Slab track systems offer greater inherent stability while ballasted track systems generally require more frequent track geometry assessments and anomaly-correcting surfacing operations. The decisions related to which system to use for a given application involve numerous considerations discussed only briefly in this paper. In many cases, the optimal solution may include both track forms. Rolling stock considerations and their influence on track infrastructure design are considered beyond the scope of this paper. This paper will focus predominantly on two slab track systems widely used in international HSR projects: the Japanese J-slab track system; and the German Rheda slab track system. The French track system will be referenced as the typical ballasted track HSR design. The practices discussed in this paper generally apply to systems which are either primarily or exclusively passenger rail systems. In the U.S., these types of systems will necessarily exclude the systems the Federal Railway Administration (FRA) refers to as “Emerging” or “Regional” HSR systems which include passenger train traffic to share trackage on, what are otherwise considered, primarily freight lines.

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