Minimum Retroreflectivity for Overhead Guide Signs and Street Name Signs

Carlson, P. J. / Hawkins, H. G. / Transportation Research Board | British Library Conference Proceedings | 2002

Evaluation of Proposed Minimum Retroreflectivity Requirements for Traffic Signs

Mercier, C. R. / Goodspeed, C. / Simmons, C. J. et al. | British Library Online Contents | 1995

Developing Updated Minimum In-Service Retroreflectivity Levels for Traffic Signs

Carlson, P. J. / Hawkins, H. G. / Schertz, G. F. et al. | British Library Online Contents | 2003

Retroreflectivity and Deterioration Characteristics of Sheeting Used for In-Service Guide Signs

Huang, Wen-hong / Hu, Li-qin / Jiang, Ming | ASCE | 2013

Safety Effectiveness of Advance Street Name Signs

Gross, F. / Lefler, N. / Lyon, C. et al. | British Library Online Contents | 2010