Crossing Data Responsibilities

On an annual basis or as railroad capital improvement projects are completed, railroad companies should submit to
RRD
 accurate:
  • Train counts (through and switching).
  • Minimum and maximum train speeds.
RRD
 receives annual updates from
Transportation Programming and Planning (TPP)
 to:
  • AADT.
  • Roadway speed limit.
  • Roadway functional classification.
  • Percent trucks.
This information may be found on the Statewide Planning Map maintained by TPP.
RRD
 typically receives updates from districts on:
  • Special vehicle movements.
Average daily traffic in TRIMS is calculated using either the AADT estimation provided by TPP or by a Programmed Annual Average Daily Traffic (PAADT) if available. A PAADT is an actual count performed in the field by either TxDOT or local government. Since a PAADT represents actual counts taken, the PAADT is used in lieu of the AADT for the purposes of performing FSP or RGS program rankings.
RRD
 updates crash data
monthly
 in TRIMS based on data found within:
  • FRA database.