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| Area: Railroad-Highway Grade Crossing Safety | |
Four Quadrant Gates, as opposed to the typical dual gate arms, eliminates the ability of drivers to go around lowered gate arms. Safety is enhanced where these additional gate arms are employed. The timing of the entry and exit gate arms at crossings with four quadrant gates in order to avoid trapping vehicles was a problem Coleman and Associates. solved using system simulation techniques.
Work performed for railroads and state DOTs validated our methodology. This has led to adoption of our methodology with confidence by agencies seeking to employ four quadrant gates. They have confidently moved forward knowing that new safety problems are not being created. This is one example of the experience and technical capabilities that Coleman and Associates brings to our clients in Railroad-Highway Grade Crossing safety.
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