TMCs count vehicles, pedestrians, and bicyclists making a specific movement or turn at an intersection for all approaches during a defined period. Collect TMCs on a typical weekday and for a minimum of two consecutive weekdays, based on coordination with the TxDOT project manager. A typical weekday count is defined as a count occurring on a Tuesday, Wednesday, or Thursday. It is recommended that the traffic count data be collected in 15-minute increments and during the same period as the remainder of the data collection. TMCs may include vehicular, pedestrian, and bicyclist modes of travel.

Recommended TMC collection method:

For atypical locations, it is suggested that the period of collection is based on the circumstances. Examples include corridors or roadways near malls, stadiums, or other land uses that generate large volumes of traffic at non-standard times of day.