When analyzing the signal warrants, must the individual hourly volumes be for hours that all start “on the hour” (i.e., 6-7 am, 7-8 am, etc.)?
There is nothing in the MUTCD text that requires the hours being analyzed to start on the hour. Many agencies’ traffic counts are tabulated with 15-minute subtotals and it has been very common longstanding practice for signal warrant analyses to evaluate not just the 1-hour periods that start “on the hour” at :00 but also those that start at :15, :30, etc. This is because the peak traffic hours can occur any time, often resulting from school start/end times, factory or shopping mall open/close times, etc. The one-hour periods need not be consecutive. They can be any one-hour periods that do not overlap each other. For example, the 3 highest non-overlapping hours in the AM peak might be 6:15 to 7:15, 7:30 to 8:30, and 8:45 to 9:45. However, whatever hours are selected must be used to evaluate warrant satisfaction for both the major road volume and the minor road volume in those specific hours. See Section 4C.01, paragraph 14, in the 2009 MUTCD. Return to Top • Q: Some agencies’ policy i
Related Questions
- With the increase in traffic volumes, the signal warrants are being met more frequently. Is the FHWA considering an increase in volume levels for traffic signal warrants?
- Must individual projects require a minimum number of hours worth of work?
- What is the hourly rate? How many hours can I work per week?
