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| Guideline | Lane-use Control Signals Design Guideline 1 |
| Title | Signal Design |
| Text | Recommend use of MUTCD standard green arrow and red “X” design for lane-use signals in lieu of traditional signal heads. |
| Commentary | Use of traditional signal head may cause confusion, as the green and red signal head indications generally mean “go” and “stop”, not “open” and “closed”. |
| Guideline | Lane-use Control Signals Design Guideline 2 |
| Title | Lane-Use Signal Specifications |
| Text | Lane-use signal faces shall provide a minimum nominal height of 450mm (18 in.) or 12” diameter, be visible from a minimum distance of 600’, provide readily accessible power and communication interconnections, be comprised of long life, high intensity LEDs, and be installed with a minimum vertical clearance of 17’. |
| Commentary | These requirements are considered general and are not intended for procurement purposes. |
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