In article traffic safety and capacity of bridge crossings is considered. The road accident which happened on the bridge crossing sharply reduces its capacity and, therefore, all road in general. At emergence of danger to the movement in difficult road conditions the driver is compelled to apply the emergency braking. Thus the road accident won't occur when a distance between cars more or is equal to the size of a stopping way. At determination of length of a stopping way of the car at the emergency braking values of sizes of time of delay of operation of the brake drive and time of increase of delay are used.

Keywords: traffic safety, bridge crossing, capacity, stopping way, distance

In article traffic safety in intensive transport streams on bridge crossings is considered. In a case when the bridge crossing has on one lane in each direction, at repair of a half of width of the carriageway - density of a transport stream sharply increases. The increase in density of a transport stream leads to change of speed of the movement of vehicles and to reduction of minimum safe distance between the cars moving in the passing direction on the bridge crossing during its repair or reconstruction. At the movement of vehicles with minimum safe distance specified in the table the maximum capacity of the bridge crossing at its repair or reconstruction will be provided.

Keywords: traffic safety, bridge crossing, intensity of the movement, repair of the carriageway, minimum safe distance