The following documents provide additional information that may be useful in the application, design, placement, or installation of freeway signs. Users should note that the guidance in these documents may not be consistent with TxDOT practice.

National Manual on Uniform Traffic Control Devices.

At the time this handbook was prepared, the 2000 National MUTCD served as the national standard for traffic control devices. It is the basis for the 2003 Texas MUTCD. The Texas MUTCD is the official document for traffic control devices in Texas. There are differences between the National and Texas MUTCD. The 2003 Texas MUTCD was the version used to develop this handbook. However, an attempt was made to incorporate changes that appeared in the 2006 Texas MUTCD into this handbook.

The National MUTCD and related information are available on-line at: .

Standard Highway Signs.

Shortly after the publication of the 2000 National MUTCD, the FHWA published a new version of the national

Standard Highway Signs

(SHS). Both metric and English versions of the document are available. The metric version contains more information than the English version. The 2002 English version of the national SHS was used to prepare this handbook.

Both versions are available on-line at: .