Advisory Sign Panels
In some cases, it may be necessary or desirable to include an advisory or warning message as part of a guide sign panel. Figure 4‑8 shows two examples of Advisory sign panels. Situations possibly warranting the uses of Advisory or Warning sign panels include:
- lane drop (Exit Only) at an exit— Exit Only signing is a common freeway guide signing practice that is described in the Texas MUTCD
- advisory speed for a ramp —used where the advisory speed for an exit or connecting ramp is significantly lower than driver expectancy for the exit or ramp
- a lane ending on the left side of the freeway (not a lane drop at an exit)
- extremely low clearance situations.
Other types of warning messages may be appropriate to include as part of a guide sign panel. TxDOT staff should consult with the TxDOT Traffic Operations Division for assistance when a warning or advisory message is being considered for a guide sign panel.
Figure 4-8. Examples of Advisory/Warning panels.