Severe congestion has been observed in the west bound lanes of the Mark Twain Expressway in the vicinity of the I-270 interchange in St. Louis County, Missouri. The objective of this study was to determine more precisely the extent of this congestion while simultaneously determining the feasibility of implementing measures to improve operation through the area. Field data were collected using time lapse aerial photography, supplemented by speed and volume measurements made on the ground. The original study plan was aimed at determining the length of acceleration lane necessary to eliminate the congestion. The reason for the breakdown in operation was determined as excess demand. The results can be used to recognize similar situations that may arise. (BPR abstract)


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    Title :

    An Analysis of Traffic Operation on the Mark Twain Expressway at I-270 in St. Louis County


    Publication date :

    1970


    Size :

    27 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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