Required Information
A complete traffic study for a proposed traffic signal or
flashing beacon installation requires the collection of sufficient
data on the physical, traffic, and operational characteristics of
the intersection. Examples of the types of data typically collected
are:
- condition diagram (covered in Chapter 3, Section 2)
- location map (covered in Chapter 3, Section 3)
- photographs (covered in Chapter 3, Section 3)
- crash data (covered in Chapter 3, Section 4)
- vehicular and pedestrian traffic counts (covered in Chapter 3, Section 5)
- approach speeds (covered in Chapter 3, Section 6)
- Traffic Survey Count Analysis Form (covered in Chapter 3, Section 7)
- intersection delay study (covered in Chapter 3, Section 8).
When the traffic signal study is complete, the information
is tabulated and checked against the traffic signal warrants set
forth in the
Texas Manual on Uniform Traffic Control
Devices (TMUTCD)
. The district traffic section supervisor
then makes a recommendation to the district engineer using the Traffic
Signal Authorization Request form (as described in Chapter 5 of
this manual).