Development of a Visual Method to Track the Movement of Hydrogen Bubbles in a Laboratory Flume
The current study proposes a visual method for tracking the hydrogen bubbles position with time in a 2-D space. The experiment is filmed from above with a video camera. The obtained movie...
Monitoring Gravel Movement Using Radio Transmitters
Radio transmitters were used to track the movement of coarse sediment particles in a mountain river during a period of high flow and high bed mobility. Transport was characterized by episodes...
The Rest of the Best
Nominations for this year's Outstanding Civil Engineering Achievement Award ranged from a channel built to control flood waters to the construction of a wastewater pollution...
Let's Go to the Videotape
Illustrating a design concept to educate and soften the resistance of community groups, environmentalists, government regulators and funding agencies is not a new idea. But the state of...
Poland Gets Moving
Poland's transportation network is a victim of two world wars, foreign domination, and neglected maintenance, but there are ambitious plans to rebuild the road and rail systems....
The Inflation Equation
The authors, a Brazilian and an American involved in a US$1 billion-plus project to build schools in the state of Rio de Janeiro, discuss how they managed despite monthly inflation of...
Deep Dig, Tight Squeeze
Since it opened in 1928, the North Station/Boston Garden Complex has secured a firm place in local history. Boston Garden, home of the Bruins hockey and Celtics basketball teams, has been...
Planes, Trains and the Games
Olympics-related construction in Atlanta isn't limited to sports facilities. The city is also gearing up for the 1996 Summer Games by accomplishing some major transportation infrastructure...
Enter the Dragon
The Chien Tan Dragon Boat train will be the flagship station of the 87 km Taipei Rapid Transit System (RTS) in Taiwan, which consists of eight heavy rail lines, two medium-capacity lines...
Recycling on the Mississippi
Changes in the Mississippi River's water depth and alignment are forcing the retirement of the 105-year-old Hannibal, Mo. swing bridge. Although the bridge's...
Operations Simulation of Rocky Mount to Charlotte Rail Route
This paper presents the approach and findings of a study sponsored by the North Carolina Department of Transportation. The study analyzed running times of a state-sponsored 403(b) passenger...
MRT Cable Supported Roof
A cable supported roof structure for Chientan station (R18A) at Taipei Mass Rail Transit system's Tan-Sui line are under construction. Unique wind and cross sectional dynamic effect has...
Effect of the Periodic Secondary Irregularity on the Dynamic Behaviour of Railway Bridge-Vehicle System
The deformation and vibration of bridge will be developed due to the moving vehicles, especially for railway bridge. The dynamic deflections in the points under each wheel are called secondary...
Application of Computer Simulation in the Research of Rail Structure Vibration Reduction
The wheel/rail system is described here as a random vibration system, and the state variables are expressed with quadratic evaluation function. The passive control problem of the random...
An Automated Database System for Construction Bidding
A number of probability-based bidding models have been developed to assist a contractor in preparing bids that improve chances of winning over the competition. Models based on utility...
The TM? Railroad Track Management System
The TM$ Railroad Track Management System is designed to increase effective access to track performance data, to forecast the effects of deterioration and maintenance activity, and to formulate...
Using Condition Indexes to Evaluate Local Railroad Track Networks
The U.S. Army Construction Engineering Laboratories (USACERL) have developed condition indexes for assessing track condition that apply to local railroads. Indexes were developed for the...
TRACK(1.0): A Railroad Track Design and Evaluation Computer Program for Work Planning and Budgeting
This paper describes TRACK, a track structural analysis method and computer program developed by the U.S. Army Construction Engineering Research Laboratories. TRACK is a program for evaluating...
TRACS: A Tool for Track Infrastructure Management
TRACS (Total Right-of-way Analysis and Costing system) combines engineering models with life-cycle costing techniques to estimate track maintenance and renewal costs as a function of track...
Planning Maintenance and Rehabilitation Activities for Local Railroads
This paper presents a structured approach for planning annual and long range (multi-layer) maintenance and rehabilitation (M&R) activities for local railroads. A method is presented...
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