Warning signs
Hidden Driveway sign
A driveway or private entrance ahead is obscured by terrain, vegetation or a building, so vehicles may pull out with little warning. This is a Pennsylvania sign, posted under the state's own W11-19A code rather than a national MUTCD number. Cover the brake and watch the roadside.
- Diamond
- Yellow
- MUTCD W11-19A
Shape and background first
Pennsylvania designation W11-19A, a sign set by Pennsylvania rather than the national MUTCD. Placed on rural highways and roads with tree lines, hedges or embankments close to the pavement where a driveway or farm entrance would otherwise be invisible until the last moment.
How states handle it
Wording and design vary by state since this is not one of the core numbered federal warning signs. Some states use a side road symbol instead of text, and others skip the warning entirely for a driveway that has no dedicated sign at all.
What the test wants you to know
The mistake people make
Because this sign is not part of the core federal sign set, its wording and shape vary more than most warning signs, so questions tend to focus on the underlying behavior rather than the exact legend. Treat any hidden entrance as a spot where a vehicle could enter without you seeing it coming until the last second, and slow accordingly.
