000 00282pam a2200097a 44500
082 _aTR
_bTRC-374
100 _a
245 1 _aUP date of NCHRP Report 230
_brecommended procedures for the safety performance evaluation of high way appurtonances
260 _a
_b
_c
997 _aTR6883 C
999 _c406020
_d406020