In this paper the detention numbers of slow-to-star is researched in the mixed traffic models, the NaSch model, the BL model and the vdr model.
We found that the detention numbers of vehicles in the mixed traffic flow is mainly influenced by the mixing ratio.
The effects of the length of long vehicles and the velocity of the short cars are little.
The detention numbers of slow-to-star increases with the growth of the occupation density ρ of the road first and reduces after one ρ