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説明
<jats:p>Traffic capacity is the capability of a waterway to deal with the traffic and when the traffic volume exceeds this limit traffic flow stops, as is often experienced on congested roads.</jats:p><jats:p>According to the U.S. Government <jats:italic>Highway Capacity Manual</jats:italic> the capacity of a highway with four or more lanes and free from conditions hindering smooth traffic flow has a maximum value of <jats:italic>V</jats:italic>/<jats:italic>Y</jats:italic><jats:sub>min</jats:sub> per lane, where <jats:italic>V</jats:italic> is the speed of a group of vehicles and <jats:italic>Y</jats:italic><jats:sub>min</jats:sub> is the average minimum separation of cars. Since <jats:italic>Y</jats:italic><jats:sub>min</jats:sub> is a function of <jats:italic>V</jats:italic> and increases rapidly and continuously with speed, there is a maximum value for <jats:italic>V</jats:italic>/<jats:italic>Y</jats:italic><jats:sub>min</jats:sub> which is a function of the speed. This is called basic capacity. Several examples of capacity together with the speeds of the transportation facilities are given in Table I.</jats:p>
収録刊行物
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- Journal of Navigation
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Journal of Navigation 24 (4), 543-552, 1971-10
Cambridge University Press (CUP)