The level of service (LOS) is a measure of traffic flow and congestion and should be used by the LG to design a project that will reasonably accommodate traffic. For projects on the state highway system or involving state or federal funding, the LG must request traffic data from TxDOT, adhere to the requirements of LOS from the TxDOT , develop a capacity analysis using the and submit to TxDOT for concurrence. The TxDOT district must review and approve the LG’s analysis and selected LOS. provides a detailed discussion of the LOS regulations and procedures.