The experiment's final report gave the device a favorable review; however, the plate, R15-9 "Crossbuck Shield", was rejected for inclusion in the 2003 Manual on Uniform Traffic Control Devices.
The experiment's final report gave the device a favorable review. The plate, R15-9 "Crossbuck Shield", was rejected for inclusion in the 2003 Manual on Uniform Traffic Control Devices. This was however.