Profit-Generating Capacity for a Freight Railroad
Category : Systems
Reducing Heavy-Haul Railcar Maintenance Costs and Improving Terminal Performance Using Technology: A Lean Production Approach
Identifying and Prioritizing Shared Rail Corridor Technical Challenges
Measuring the Impact of Additional Rail Traffic Using Highway and Railroad Metrics
Impact of Passenger Trains in Double Track Networks
Optimizing Skip Stop Service in Passenger Rail Transportation
A Project Selection Model for Improving Running Time on Passenger Rail Corridors
Analyzing the Progression from Single to Double Track Networks
Machine Vision Analysis of the Energy Efficiency of Intermodal Trains
Capacity of single-track railway lines with short sidings to support operation of long freight trains
2015. Capacity of single-track railway lines with short sidings to support operation of long freight trains. Transportation Research Record: Journal of the Transportation Research Board. 2475: 95-101.
Use of distributed-power locomotives in heavy-haul service has allowed for greater efficiencies through operation of longer freight trains. In North America, where the majority of main-line routes are single track, the potential economic and operational advantages offered by long trains are constrained by the inadequate length of many existing passing sidings. To implement longer trains,…
Operational schedule flexibility and infrastructure investment: capacity trade-off on single-track railways
2016. Operational schedule flexibility and infrastructure investment: capacity trade-off on single-track railways. Transportation Research Record: Journal of the Transportation Research Board. 2546: 1-8. doi:10.3141/2546-01.
To minimize costs, railways carefully match route infrastructure investment to projected traffic levels. Under structured operations according to a rigid timetable, the optimal amount of infrastructure for a given traffic volume can be determined with various models. However, North American railways use flexible operations for which planned train departure times can vary. Schedule flexibility increases…
Comprehensive decision support framework for strategic railway capacity planning
2011. Comprehensive decision support framework for strategic railway capacity planning. Journal of Transportation Engineering. 137 (10): 738-749. doi:10.1061/(ASCE)TE.1943-5436.0000248.
The potential growth of railway traffic is expected to be substantial worldwide; hence, railway companies and agencies are looking for better tools to allocate their capital investments to capacity planning in the best possible way. This paper presents a comprehensive decision support framework with three stand-alone tools for strategic railway capacity planning: (1) “Alternatives Generator,”…
High-speed rail network design and station location; model and sensitivity analysis
2013. High-speed rail network design and station location; model and sensitivity analysis. Transportation Research Record: Journal of the Transportation Research Board. 2374: 1-8.
To improve the personal mobility, safety, and environmental impact of passenger travel and to strengthen regional and national economies, planners, governments, and transportation companies throughout the world have been building high-speed rail (HSR) systems for more than half a century. Although many early systems were principally government projects, public–private partnerships are increasingly being used to…
Analyzing the transition from single- to double-track railway lines with nonlinear regression analysis
2016. Analyzing the transition from single- to double-track railway lines with nonlinear regression analysis. Journal of Rail and Rapid Transit. 230 (8): 1877-1889. doi:10.1177/0954409715616998.
The demand for freight rail transportation in North America is anticipated to substantially increase in the foreseeable future. Additionally, government agencies seek to increase the speed and frequency of passenger trains operating on certain freight lines, further adding to demand for new railway capacity. The majority of the North American mainline railway network is single…
Model for optimal selection of projects to improve running time and operating cost efficiency on passenger rail corridors
2016. Model for optimal selection of projects to improve running time and operating cost efficiency on passenger rail corridors. Transportation Research Record: Journal of the Transportation Research Board. 2546: 33-42. doi:10.3141/2546-05.
Recent proposals for expanded intercity passenger rail service in the United States have included plans for incremental improvements to existing Amtrak service. Improvements to existing services aim to accommodate faster and more frequent passenger train operation, generally on track owned and operated by freight railways. Various projects and approaches can be considered when the running…
Improving regenerative energy receptivity in metro transit systems: Coordinated train control algorithm
2015. Improving regenerative energy receptivity in metro transit systems: Coordinated train control algorithm. Transportation Research Record: Journal of the Transportation Research Board. 2534: 48-56.
Algorithms for current automatic train operation (ATO) focus mainly on reducing the mechanical energy of motion for a single train within an existing timetable. However, the reuse of regenerative energy is another factor that contributes to energy consumption and conservation in multitrain networks. To improve regenerative energy receptivity and energy savings in a bidirectional metro…
Worldwide railway skeleton network: Extraction methodology and preliminary analysis
2017. Worldwide railway skeleton network: Extraction methodology and preliminary analysis. IEEE Transactions on Intelligent Transportation Systems. 18 (8): 2206-2216. doi:doi 10.1109/TITS.2016.2632998.
Understanding and improving global mobility has gained increased interest during the last decades. However, studies on the railway network are spatially limited so far, mostly investigating the domestic network of a country. Data availability is a major limiting factor for the analysis of these networks. Despite the increased open data movement, network operators are often…