Highway Accident System User's Manual
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The Highway Accident System (H.A.S.) was developed for the Highway Safety Branch of the Ministry of Transportation and Highways. The system runs on the B.C. Systems Corporation IBM Mainframe computer.
The H.A.S. data comes from MV-6020 accident forms, of accidents on Provincial Jurisdiction highways. (The old name for the form is MV104). The data is obtained from the Motor Vehicle Branch. Fatal accident data is cross-checked with other data sources, thus the fatal data is likely to be accurate and complete. The rest of the data is only as accurate and complete as the data coded and submitted by the police. In recent years (since 1996) the number of accidents attended and reported has dropped off significantly.
The H.A.S. requires a definition of the Provincial highway system as a Segment-Node network. This definition is provided by the Landmark Kilometre Inventory (LKI). For use by the Highway Accident System, the LKI was expanded from its original design to include data such as nodes, areas and classifications.
The Update Sub-System was completed in January 1988. The purpose of the Update Sub-System is to select accidents from the MVB data which have correct or correctable LKI location codes, and update the H.A.S. Master files. The Data Retrieval Sub-System was first implemented in January 1989. This sub-system contains the accident reporting and analysis programs. These use accident data extracted from the PDS Master Filesa pair of Partitioned Data Sets with data stored in separate segment and node members. This allows direct access to the data of any segment or node in the highway network. Accident subset creation,
Accident-Prone Location, Accident-Prone Section, Details Report, Summary Report, Histogram, Rate Table and SAS functions are the major features.
The Highway Accident System was originally designed and written by Matthew Nicoll, of Cypher Consulting, in consultation with Richard Dixon, who was then a Highway Safety Branch Engineer. Subsequent enhancements have been done by Matthew Nicoll and Mia Shinbrot, of Cypher Consulting. The Highway Accident System was made Year-2000 compliant in early 1998.
Highway and Transport Engineering
and this section is about Highway Accident
(refference : http://www.cypherconsulting.com/HASuser.pdf)
Title Post: Highway Accident System User's Manual
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Rating: 100% based on 99998 ratings. 5 user reviews.
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