*2.2. Characteristics of Intersections*

At intersection No. 1, measurements were made at the eastern approach. There is one 3.25 m wide lane for straight ahead, a left-turn lane, and a right-turn lane. The traffic organization at intersection No. 1 is shown in Figure 3.

**Figure 3.** Traffic organization at intersection No. 1. (Background map Head Office of Geodesy and Cartography).

During measurements at the intersection, signaling programs with a cycle duration of 100 s (06:30–08:00) and 95 s (08:00–08:30) operated. The green signals had a time of 36 s and 32 s, respectively.

At intersection No. 2, measurements were also carried out at the eastern approach. There are no marked lanes at the approach, and its width is 5.8 m. The traffic organization at intersection No. 2 during the measurements is shown in Figure 4. Currently, the traffic organization has been changed.

**Figure 4.** Traffic organization at intersection No. 2. (Background map Head Office of Geodesy and Cartography).

A signaling program with a cycle duration of 90 s was in operation during measurements at the intersection. The green signal duration was 30 s.

At intersection No. 3, measurements were made at the western approach. There are two 3 m wide lanes for straight-ahead driving. Besides, there is a left-turn and right-turn lane. The traffic organization at intersection No. 3 is shown in Figure 5.

**Figure 5.** Traffic organization at intersection No. 3. (Background map Head Office of Geodesy and Cartography).

During the measurements at the intersection, signaling programs with a cycle duration of 100 s (06:30–08:00) and 95 s (08:00–08:30) operated. The green signals had a duration of 35 s and 26 s, respectively.

Table 2 shows the results of traffic measurements at the intersections. The number of vehicles other than passenger cars was minimum. During the research, the influence of the type of vehicles on the results was not considered. Vehicles other than passenger cars were not analyzed.


**Table 2.** The volume of vehicles on intersections during the measurement period (2 h).

#### *2.3. Data Analysis*

After the recordings were made, the material was divided according to the SCT function (on or off). Then, the recordings were prepared for analysis. The analysis was performed separately for each of the recorded parameters:


Statistical data analysis was performed using the R system [90,91]. The charts were prepared using the ggplot2 package [92,93]. The methodological steps of data analysis are shown in Figure 6.

**Figure 6.** Flowchart of data analysis.
