고속도로 진입차량의 진입허용시간 ( Gap Acceptance at Highway Interchange )
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The purpose of this study is to analyze the distribution of gap
acceptance at highway interchanges. This study used negative
exponential distribution, Erlang distribution with Erlang
coefficient 2 and 3 to analyze the distribution of merging
vehicles on merging lane. In order to choose proper distribution
with minimum difference between estimated and observed merging
vehicles, Chi-square(x2) values were computted.
Chi-square(x2) value between the estimated number of merging
vehicles by Erlang distribution with coefficient 2 and observed
one is 29.3520, Erlang distribution with coefficient 3 is 30.7190,
and 42.2932 by negative exponentail distribution. Erlang distribution
with coefficient 2 is considered the best distribution.