Impact of Train Type Heterogeneity on Single-Track Railway Capacity

Transportation Research Record - Tập 2117 Số 1 - Trang 41-49 - 2009
Mark H. Dingler1, Yung‐Cheng Lai2, Christopher P. L. Barkan3
1Railroad Engineering Program, B-118 Newmark Civil Engineering Laboratory
2Department of Civil Engineering, National Taiwan University, Room 313, Civil Engineering Building, Number 1, Roosevelt Road, Section 4, Taipei, Taiwan, 10617.
31203 Newmark Civil Engineering Laboratory, Department of Civil and Environmental Engineering, University of Illinois at Urbana–Champaign, 205 North Mathews Avenue, Urbana, IL 61801.

Tóm tắt

North American railroads are experiencing rapid growth in traffic demand and increasingly need to expand capacity to accommodate it. Efficient planning of new capacity requires understanding how the mixture of traffic interacts to affect capacity. Different train types can have substantially different operating characteristics, including maximum speed, power-to-ton ratio, and dispatching priority. Heterogeneity in the mix of characteristics of different train types creates greater delays than are created if traffic is homogeneous. Train dispatching simulation software was used to analyze the effect of various combinations of intermodal, unit, manifest, and passenger trains on a hypothetical, signalized, single-track line with characteristics typical of a North American railroad subdivision. Analyses included the influence on delay by various traffic and train characteristics. As has been shown by previous investigators, heterogeneity increases delay, but different types of heterogeneity had differing effects, which has implications for capacity planning. This paper attempts to provide a better understanding of the impacts of various aspects of train type heterogeneity to enable more effective planning and efficient rail operations. The results also suggest certain operating strategies that may reduce the delays caused by train type heterogeneity.

Từ khóa


Tài liệu tham khảo

2006, Railroad Facts 2007.

2007, Transportation—Invest in Our Future: America's Freight Challenge.

Gallamore R., 1999, Regulation and Innovation: Lessons from the American Railroad Industry. Essays in Transportation Policy and Economics.

10.1061/(ASCE)0733-947X(2006)132:8(601)

10.3141/2117-05

Pachl J., 2002, Railroad Operating and Control.

2005, UIC Leaflet 406.

10.1016/j.ejor.2004.10.010

LandexA., KassA. H., SchittenhelmB., and Schneider-TilliJ. Evaluation of Railway Capacity. Proc., Trafficdays, Aalborg, Denmark, 2006.

10.1016/j.tre.2007.04.001

Bronzini M. S., 1985, Tribune des Transports, 2, 5

Harrod S., 2007, Rail Capacity and Management Planning.

10.1016/j.tre.2008.08.004

WhiteT. A. Examination of Use of Delay as a Standard Measurement of Railroad Capacity and Operation. Presented at 85th Annual Meeting of the Transportation Research Board, Washington, D.C. 2006.

RTC Simulations—LOSSAN North Railroad Capacity and Performance Analysis.

The Long Term Financial Feasibility of the Northwestern Pacific Railroad.

2007, National Rail Freight Infrastructure Capacity and Investment Study.

KruegerH. Parametric Modeling in Rail Capacity Planning. Proc., Winter Simulation Conference, Phoenix, Ariz. 1999.

SchaferD., and BarkanC. P. L. A Prediction Model for Broken Rails and an Analysis of Their Economic Impact. Proc., 2008 AREMA Conference, Salt Lake City, Utah, 2008.

Thông tin
Thông tin xuất bản

Transportation Research Record

Tập 2117 Số 1

41-49

Thông tin tác giả