Erlang distribution


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Erlang distribution

[′er‚läŋ ‚dis·trə‚byü·shən]
(statistics)
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The transportation time between SC levels is represented by the Erlang distribution Erl (k = 2) with multiple means.
1999) collected headway data from different sites in Japan and used Synthetic erlang distribution model to investigate the effects of some factors on time headway distribution.
It was found that negative exponential, shifted exponential and gamma distributions reasonably fitted time headways at low and medium flow rates on freeways, whereas the Erlang distribution was found to be appropriate in high traffic flows.