TY - SER ED - Transport and Road Research Laboratory. TI - TRRL laboratory report 1110 SN - 0305-1293 U1 - 388.12 PY - 1974///- CY - Crowthorne, Berkshire PB - Transport and Road Research Laboratory KW - MCE N1 - "Department of the Environment."; Latest issue consulted: 1050, published in 1982; Some issues of earlier title, TRRL report, have TRRL laboratory report on cover, 1973-1974; Technical report; 0; 0; 0; 388_120000000000000_JON ER -