Different conditions capacity estimates model at major priority control intersection

Estimation for non-signalized intersections may be used instead of old single model. It had analyzed M3 headway distribution characters and critical term of the model. The critical application volume scope of the model also was defined. After analyzed minor stream´s passage forms and condition, it had divided conditions into several phases considering headway scopes of major stream. The hypotheses of those phases for capacity estimates then were given. The hypotheses of those phases for capacity estimates then were given. Using methods of generalized integral and probability the estimate model considering several conditions had been established. Compared with single model the model considering different conditions is even adaptive.