International orange International orange International orange is a color used in the aerospace industry to set objects apart from their surroundings, similar to safety orange, but deeper and with a more reddish tone. This is the shade used by NASA. The Bell X1, the first airplane to break the sound barrier, was also painted in International Orange. Above is displayed the tone of "international orange" used to paint the Golden Gate Bridge. The tone of international orange used to paint the Golden Gate Bridge is slightly lighter than the standard International orange used by military contractors and in engineering (shown below), thus
Golden Gate Bridge of the concurrency between U.S. Route 101 and California State Route 1. Although part of the National Highway System, the bridge is not officially part of California's Highway System. For example, under the , Route 101 ends at "the approach to the Golden Gate Bridge" and then resumes at "a point in Marin County opposite San Francisco". The Golden Gate Bridge, Highway and Transportation District has jurisdiction over the segment of highway that crosses the bridge instead of the California Department of Transportation (Caltrans). The movable median barrier between the lanes is moved several times daily to conform to traffic