Traffic control devices (TCDs) are a vital element of the highway environment. They provide a means of communicating important information about the highway to the driver. Since the beginning of the twentieth century, traffic control devices have continually grown in number and complexity. Today, there are a large number of signs, markings, and symbols which utilize shape, color, symbols, and/or words to convey the information needed by a driver. However, these devices serve little purpose if they are not understood. Therefore, the research study was initiated to determine how well motorists understand some of the most critical traffic control devices.
Motorist Comprehension of Traffic Control Devices: Statewide Survey Results
1993
128 pages
Report
No indication
English
Motorist Comprehension of Traffic Control Devices for Mobile Operations
Transportation Research Record | 2006
|Transportation Research Record | 2006
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