That means that the public transport priority has negligible effects on the total delays of other traffic although some single vehicles may suffer quite long delays. Only with higher flows the delays of other traffic are larger with priority than without priority. In the other figure when priority was used, all trams could pass the signals without stopping. They only need to stop at the tram stop just after the junction. The average delay reduction because of priority is about twenty seconds.
Vehicle trajectories with and without priority have no large variation.
When priority was in use, the variation of trajectories seems to be larger because there were some vehicles which had stopped earlier. The difference is quite small and at least the red line describing the average driving trajectory has the same shape in both cases. This finding is adequate with the previous results that the effects of public transport priority are quite small when all the traffic is considered. The increase of fuel consumption is shown in the figure on the right. The increase of fuel consumption is depending on the headway of the trams and the flow level.