The MUTCD specifies that the duration of the yellow change interval should be between 3 and 6 seconds. How is the actual length determined for a given intersection?
Section 4D.26 of the 2009 MUTCD requires the duration of the yellow change interval to be determined using engineering practices, and indicates that such engineering practices can be found in two books published by ITE. (Visit ITE’s website at www.ite.org, where you will find additional information under “Technical Information”.) Because vehicle laws vary by State and conditions vary by intersection, the engineer must exercise judgment in deciding on the length of the yellow interval, as noted in the ITE guidelines.
Related Questions
- Certain European data packs are charged by the actual duration they were used and not for a complete calendar month. Why is there a difference?
- How is the timing interval determined between the red, yellow and green traffic lights at an intersection?
- What are the actual chances of getting yellow fever in Dakar Senegal in December?
