| A | B |
|---|
 | Clear: Proceed. NOTE: Signal 6 & 7 are displayed on the Chicago Sub at 95th Street only. Signal 8 is displayed on the Chicago sub at Homewood only. |
 | Advance Approach: Proceed prepared to stop at second signal |
 | Approach Proceed prepared to stop at next signal. NOTE: Signal 6 is displayed on Leithton, Matteson, Lakefront Subdivisions only. Signal 7 is displayed on the Chicago Sub at Homewood only |
 | Approach Restricting: Proceed prepared to pass next signal at Restricted Speed. NOTE: is displayed on Leithton, Matteson, Lakefront and Waukesha Subdivisions only |
 | Advance Approach Diverging: Proceed prepared to enter diverging route at second signal at prescribed speed |
 | Approach Diverging Proceed prepared to enter diverging route at next signal at prescribed speed. Proceed prepared to stop at second signal |
 | Diverging clear: Proceed on diverging route at prescribed speed |
 | Diverging Clear Approach Diverging: Proceed on diverging route at prescribed speed prepared to enter diverging route at next signal at prescribed speed. Proceed prepared to stop at second signal |
 | Diverging Advance Approach: Proceed on diverging route at prescribed speed prepared to stop at second signal |
 | Diverging Approach: Proceed on diverging route at prescribed speed prepared to stop at next signal |
 | Diverging Approach Restricting: Proceed on diverging route at prescribed speed prepared to pass next signal at restricted speed NOTE: Signal 2 is displayed on Leithton, Matteson, Lakefront and Waukesha Subdivisions only |
 | Restricting: Proceed at restricted speed. NOTE: Signal 145 is displayed on the Chicago Sub at 95th Street only |
 | Restricted Proceed: Proceed at Restricted Speed |
 | Stop: Stop NOTE: Signal 7 is displayed on the Chicago Sub at 95th Street and Homewood only. Signal 8 is displayed on teh Chicago Sub at 95th Street only |
