That is possible because the speed is not reduced after the cars branched off the main track(9) but only after the next branch (10). Only every second vehicle can turn left as the speed was reduced  to the half.

For the vehicles going straight ahead there are two possibilities. Either they reduce their speed or they go on with the same speed. Considering the second case, after branching off (10) there are the same conditions which makes logistics easier and saves time. Besides that there is more flexibility since not every second vehicle has to branch off at the first arm. But this second case costs more energy than the first one. After the second branch (11) the speed is reduced to the half again. That means that now every second vehicle has to branch off. With a synchronized speed of 200 km/h one is now at 50 km/h. A vehicle can be stopped at that speed easily after the next arm (12) to go into a box (13). But also more steps could be added .

The version shown in Fig. 7 is the structure that is a minimum requirement which can already hold 16 vehicles driving directly one after another into the empty boxes. The maximum configuration to hold all vehicles with a synchronous speed of 200 km/h and a length of 10m and a load time of 30s has to have 168 boxes. That means 42 instead of four.

When there is a free spot on the main track after unloading and reloading the vehicle (more detailed information below) it will be accelerated to a quarter of the synchronous speed. After the branch (14) the speed has to be half of the synchronous speed. And after that, the vehicle has to be at full synchronous speed already in order join the traffic on the main track .