IRT — New York City's First Subway
In October 1904, New York City opened its first subway, the Lexington Avenue IRT line. It was the nation's first subway to operate with trains of cars (Boston's...

Nonlinear Analysis of Rail Overturning

Dynamic Rail Overturning: Modelling and Application

Reinforcement of Railway Embankments in Japan

Design for Railroad Ballast and Subgrade Support
A rational design method for railroad ballast and subgrade support based on the Casagrande classification of soils is presented. Ballast increments for upgrading existing track for soft...

Response of Railroad Ballast to Vertical Vibration
The effect of vertical vibration on some railroad ballasts in laboratory tests is presented. The ballasts were found to behave in a similar manner to that previously reported for sands,...

Soil-Structural Interaction and Concrete Tie Design
Experimental data and theoretical argument are presented to show that the optimum length for a concrete tie of uniform cross section is 1.67 to 1.71 times the distance between the two...

Triaxial Tests on Dolomite Railroad Ballast
Triaxial static compression and extension tests using low confining pressures have been performed on a fine mineral grained tough dolomite railroad ballast. The shear strength and tangent...

Repeated Load Triaxial Tests on a Dolomite Ballast
Triaxial repeated load saturated drained compression and extension tests at low cell pressures on a fine mineral grained tough dolomite railroad ballast are reported. Both plastic strains...

Environmental Impacts of BART and People's Responses
Results are intended for use in Federal transit policy making, in improvement of transit system design, and in simplification of the transit planning process. The study identified specific...

Effect of Imperfections on Vertical Track Buckling
The paper deals with the effect of geometric imperfections on the post-buckling characteristics of railroad tracks. The analysis is restricted to the case of vertical track buckling due...

Building New Bridges from Old
The Duluth, Missabe and Iron Range Railway Co. needed a new 150-ft (64-m) two-span railroad bridge. Minimum time and low cost were the demands. In response, the designers used steel girders...

Joint Use of Railway Facilities by Freight and Metropolitan Transit Services
The use of existing railway trackage by prospective metropolitan rail transit services involves a much lower construction cost than required when the public transportation services are...

Tehran International Airport
The Tehran International Airport is designed to cope with the following factors: Ability to handle a large volume of traffic at its inception in the early 1980's and increasing...

Considerations in the Analysis of Conventional Railway Track Support System
An adequate engineering analysis of conventional railway track support system (CRTSS) requires the consideration of all the major components of the track support system. Past efforts in...

Railroad Wood Tie Design and Behavior
The theory of an elastic beam on an elastic or spring foundation is reviewed and its implications to straight rail track examined as an introduction to tie design. Published data on railroad...

Unit Train/Great Lakes Bulk Ship Cost Comparison
An analysis is made of the economic tradeoffs between moving bulk goods by unit train or by bulk carrier operating on the Great Lakes. Variations in ship and train size, length of haul,...

Community Noise Study for Railroad Relocation
A procedure is developed that can be utilized to predict the noise impact of passing freight train cars. The technique is based upon free-field measurements as corrected by the relative...

Concrete Bridge-Tunnel Has No Deck
Engineers solve the problem of how to economically span a single track railroad without interrupting train traffic. Highway fill was placed over post-tensioned precast concrete arch sections...

Railroads, Truss Bridges and the Rise of the Civil Engineer
The huge growth of the railroads during the nineteenth century was the direct result of herculean efforts on the part of civil engineers. Likewise, the development of the civil engineering...

 

 

 

 

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