Accident rates as related to design elements of rural highw-ays / Jaakko K. Kihlberg and K.J. Tharp.
Kihlberg, Jaakko K.
Accident rates as related to design elements of rural highw-ays / Jaakko K. Kihlberg and K.J. Tharp. - Washington, D.C. : HRB - 173 p. - Report / Highway Research Board ; 47 .
Accident rates as related to design elements of rural highw-ays / Jaakko K. Kihlberg and K.J. Tharp. - Washington, D.C. : HRB - 173 p. - Report / Highway Research Board ; 47 .