Development of Simulation and Cost Models to Compare HSR and Maglev Systems
Both high-speed rail (HSR) and magnetically levitated systems offer comfortable and safe ground transportation at high speed. The cost structure and performance of these systems and their...
Automation for Design of High Speed Rail Alignments
The widespread industry practice of using civil engineering software modified for the design of High Speed Rail alignment is inefficient and produces inadequate results. Advances in computer...
The Use of Multibody Software in the Wheel/Rail Contact as Applied to Very High Speed Tests
How strange may it be, the behaviour of railway vehicles depend on contact forces developing between wheels and rails inside patches of no more than 1 cm2....
Implementation and Maintenance of a TGV Line
Because of the success of the TGV in France since the opening date in 1981, SNCF plans to implement 2800 miles of new line in the next 20 years. A new line project poses two management...
Making the Leap
Over the past decade, computers have become as much a part of the engineering field as concrete and steel. But bringing a firm into the information age can be complicated and expensive....
Runway Rehab: A Case for CADD
Hired to design and monitor construction at Boston's Logan Airport, engineers at S E A Consultant's quickly realized that they would have to supplement their...
Landfill on Screen
Engineers for a $3.7 million regional landfill in Iowa turned to computer-aided design at every project step from conceptual design through operations monitoring following construction....
Production and Decomposition of
Production and decomposition rates were calculated for Spartina patens in a mesohaline coastal marsh in Louisiana. Production was estimated to be 800 g m-2 ur-1 during 1991 and 1,696 g...
A Workstation for the Extraction of Coastline from Digital Imagery
The delineation of coastline has primarily been a manual tracing exercise from various forms of imagery. In this paper, a process to extract shoreline automatically from digital imagery...
Shoreline Erosion Assessment Software (SEASware)
This paper describes the shoreline erosion assessment software SEASware....
Evaluation of Airborne Video Imagery for Distinguishing Intertidal Oyster Reefs
We evaluated the effectiveness of airborne video imagery in distinguishing and mapping oyster (Crassostrea virginica) reefs in Aransas Bay on the southern Texas gulf coast. Imagery obtained...
DUNEBASE?Information Management System
DUNEBASE - an information management system designed to facilitate access to, and use of, large text information banks and data bases on geomorphology, human use, and vegetation of the...
Beach Morphology Analysis Package (BMAP)
This paper describes a newly developed personal computer software analysis package called BMAP, which stands for 'Beach Morphology Analysis Package.' The BMAP is an integrated set of beach...
A Man-Machine Partnership for Map Production: An Application of Image Classification and Auto-Vectorization in Charting Coastlines
The semi-automatic production of coastal area maps through computer processed digital images is described. Two sources of digital imagery were addressed: satellite and aircraft mounted...
Bank Erosion at the Aransas National Wildlife Refuge
The Aransas National Wildlife Refuge has been experiencing problems with the erosion along the banks of the Gulf Intracoastal Waterway. In order to prevent future erosion it is necessary...
Berm Placement Planning Study at Breton Island, Louisiana
This paper identifies tools that are being utilized to determine the most environmentally beneficial location for a nearshore berm to be constructed at Breton Island, Louisiana. The computer...
Research on the Buffer Effect of Canals
In Japan, canals for transport have been developed on the coast of urban areas. Recently, it has become evident that those areas are under chaotic conditions due to the decline of the...
Field Implementation and Testing of a Machine Vision Based Incident Detection System
This paper contains test results of a video detection device installed in the field for over two years and the development and field deployment of an incident detection sysytems called...
Video Image Processing Application: Automatic Incident Detection on Freeways
This paper presents the results of tests carried out in the last 3 months of 1992 regarding the Automatic Incident Detection System elaborated in the INAVID project (DRIVE program). This...
A Prototype Real-time Expert System for Surface Street Traffic Management and Control
This paper discusses the development of a prototype real-time knowledge based expert system (KBES) to demonstrate the feasibility of assisting the operators of surface street Traffic Management...
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