*3.2. Headway*

Based on video recordings, the times of entry of subsequent vehicles from the queue were marked. The time of entry of the first vehicle was determined from the time of displaying the green signal to crossing the stop line. The mean values of the headway are presented in Figure 8.

In the chart, the number of the intersection is highlighted by color, and the RSCT status is marked with a symbol. The vehicle number in the queue is shown on the horizontal axis. Additionally, the following ranges are presented using background color:


**Figure 8.** Headways between vehicles during queue start (description of filled areas given in text).

#### *3.3. Amber Light Running*

For vehicles entering the intersection after the end of the green signal, the time from the end of the green signal was recorded. The results were broken down into intersections and GSCT status. The distribution of entry times is presented in Figure 9.

**Figure 9.** Boxplots of the time of entry after the end of the green signal.

Additionally, for the entire population of registered entries after the end of the red signal, a histogram of the entry time measured from the end of the green signal was developed, as shown in Figure 10. Both graphs show the moment of the signal change to red. The red color refers to the situation with the GSCT turned off, and blue color with the GSCT turned on.

**Figure 10.** Histogram of entry times after the end of the green signal (data from all intersections).
