Temporary Traffic Control Signs

Warns approaching drivers that a work operation is taking place on or near the roadway ahead so they can slow down and stay alert for changing conditions.

Warns drivers that a detour is ahead and that the normal route will be interrupted, prompting them to prepare to follow an alternate path.

Warns that the road ahead is closed and that through travel will not be possible, giving drivers time to turn or follow a detour before reaching the closure.

Warns that two-way traffic will be reduced to a single shared lane ahead, where opposing directions must take turns through the work area.

Warns that a travel lane is closed ahead and that drivers in that lane will need to merge into an adjacent open lane before the work area.

Warns specifically that the right-hand travel lane is closed ahead so traffic in that lane can merge left in advance of the closure.

Warns specifically that the left-hand travel lane is closed ahead so traffic in that lane can merge right in advance of the closure.

Uses a flagger symbol to warn drivers that a flagger is controlling traffic ahead and that they must be prepared to stop or follow the flagger's directions.

Uses a worker symbol to warn that workers are present on or near the roadway ahead, signaling drivers to reduce speed and increase caution.

Warns that work is taking place on the shoulder ahead, alerting drivers to workers and equipment near the edge of the traveled way.

Warns that the shoulder is closed ahead and is not available for stopping, disabled vehicles, or travel through the work area.

Warns that utility work is taking place on or near the roadway ahead, alerting drivers to utility crews, equipment, and possible lane or shoulder impacts.

Warns drivers that they may have to stop ahead, giving advance notice of a flagging station, queue, or signal that can require stopping.

Uses a symbol to warn that a travel lane is ending and that traffic must merge in the indicated direction where the roadway narrows.

A word-message warning that a travel lane is ending ahead, telling drivers the number of through lanes will be reduced.

Informs drivers of the total length of a work zone, telling them how many miles of road work to expect ahead.

Marks the downstream end of a work zone, informing drivers that they have passed the work area and that normal conditions resume.

Identifies an approved detour route, marking the path drivers should follow around a closure when used with directional arrows.

Combines the word DETOUR with a directional arrow to point drivers toward the correct turn along the detour route.

Marks the end of a detour route, telling drivers they have returned to the original road and the detour is complete.

Directs pedestrians along an alternate accessible route when a sidewalk or crosswalk on their normal path is closed.

A regulatory sign stating that the road is closed to all traffic, posted at the closure point typically on a barricade across the roadway.

A regulatory sign advising that the road is closed ahead, often with a local-traffic or detour message, so drivers can prepare to turn or detour.

A regulatory sign stating that through travel is closed while still allowing local access to properties within the closure.

Prohibits entry into a roadway or lane, telling drivers they must not proceed past the sign in that direction.

Alerts a driver who has entered a roadway in the wrong direction that they are traveling against traffic and must turn around.

Indicates that traffic on the roadway flows in one direction only, to the left, as shown by the horizontal arrow.

Indicates that traffic on the roadway flows in one direction only, to the right, as shown by the horizontal arrow.

Informs pedestrians that a crosswalk is closed and that they must use another crossing rather than the one that is blocked.

Informs pedestrians that the sidewalk is closed at that location, signaling that they must not continue along the blocked walkway.

Tells pedestrians that the sidewalk is closed and directs them to use the sidewalk on the opposite side of the street.

Advises pedestrians of a sidewalk closure ahead and directs them to cross at the indicated location before reaching the closure.

Marks the point where pedestrians should cross because the sidewalk is closed, directing them to the open side at the crossing.

The California application of the ROAD WORK AHEAD warning, reflecting CA MUTCD and Caltrans conventions for legend, size, and fluorescent orange sheeting in work zones.

The California application of the Flagger warning sign, reflecting CA MUTCD and Caltrans flagging practice, sizing, and fluorescent orange sheeting.

The California application of the pedestrian detour marker, used to route pedestrians around sidewalk and crosswalk closures along an accessible alternate path.

Marks an obstruction or hazard within or adjacent to the roadway, using a high-contrast pattern to make the object visible day and night.

A striped object marker that delineates the edge of an obstruction, with the stripes sloping down toward the side traffic should pass.

A striped Type 3 object marker used to mark the end of a roadway or a substantial obstruction, with stripes indicating the direction to pass.