The exam is a 3 hour session.
The TSOS certification examination will include an assessment of knowledge in the areas of:
| Subject Domain/Sub-Domain |
Number of Questions |
| Principles of Signals and Signal Systems |
19 |
Signal control and functionality |
4 |
Types of signals |
2 |
Supporting hardware devices and subsystems |
2 |
Signal coordination and progression |
3 |
System types |
1 |
Special user needs |
1 |
Design standards |
4 |
| Traffic flow theory |
2 |
| Elements of Signal Design and Implementation |
20 |
Signal phasing and geometrics |
4 |
Preemption and priority |
2 |
Pavement markings and signing |
4 |
Detectors |
2 |
Signal head, cabinet and pole placement |
3 |
Temporary traffic control and equipment switch over |
3 |
| Initial turn-on and timing adjustments |
2 |
| Signal Timing |
26 |
Clearance intervals |
6 |
Isolated signal timing |
2 |
Coordinated signal timing |
4 |
Data collection procedures |
2 |
Performance measures |
2 |
Software and analysis |
2 |
Field implementation |
3 |
Systems control |
2 |
| Documentation |
3 |
| Signal Operations and Safety Reviews |
35 |
Safety audit |
6 |
Scheduled field reviews |
4 |
Receipt of and response to public inquiries |
6 |
Responsive field reviews |
6 |
Reevaluation of phasing and timing |
6 |
Signal removal or modification |
4 |
| Asset management and documentation |
3 |
