ParkerD. B.“The Application and Control of the Motorway Matrix Signalling System.”Department of Civil Engineering, Portsmouth Polytechnic, April 1978. (Unpublished).
2.
ParkerD. B.CrossI. G.“Effectiveness of Motorway Matrix Signalling.” Paper presented to the Fifth Annual Transportation Engineering Symposium on Driver Response to the Highway Environment at the Department of Civil Engineering, Portsmouth Polytechnic. June 20 1979.
WilliamsT. E. H.LaugharneA.“Motorway usage and operations.” Paper presented at the conference on “20 years of British motorways — an assessment of their impact”. The Institution of Civil Engineers, Westminster, London. February 27–28 1980.
5.
RutleyK. S.“New Signals for Motorways.”The Highway Engineer, Vol. 26, No. 10, pages 10–13, October 1979.
6.
RutleyK. S.WebbP. J.“Recognition Distances and Understanding of Legends on an Experimental Motorway Signal.” TRRL Supplementary Report 500, TRRL, Crowthorne, 1979.
7.
JohnsonM. D.“Motorway accidents in fog and darkness.” Report LR 573. Transport and Road Research Laboratory. Crowthorne, Berkshire. 1973.
8.
AndrewCharmain. “An interview survey of motorway driver information requirements and signal understanding.” Report LR 742 page 9. Transport and Road Research Laboratory. Crowthorne. Berkshire. 1977.
