This handbook presents information as guidance for use by design personnel. This handbook does not establish any standards, specifications, or regulations. This handbook carries no legal authority.

In some cases, the information presented in this handbook exceeds the minimum guidelines contained in the Texas MUTCD or other TxDOT documents. This handbook does not supercede or modify the minimum guidelines contained in other TxDOT documents. In situations where the guidelines presented in this handbook cannot be satisfied, designers should try to meet the minimum guidelines contained in other TxDOT documents.