Application of passing sight distance in road design (CROSBI ID 661988)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Čutura, Boris ; Cvitanić, Dražen ; Lovrić, Ivan
engleski
Application of passing sight distance in road design
The regulations determine the minimum length of passing sight distance as the function of design speed. Researches have confirmed that passing sight distance has a positive impact on capacity for relatively low traffic volume. Recent researches show that the definition of passing capabilities as percentage of zones with forbidden passing (no passing zone) does not describe sufficiently well the real state. In this paper are presented the results of the research on the section of the main road (Vr = 80 km/h), which show that the minimum lengths of passing zones (passing sight distances) have very little effect evan at very low traffic flow rate. The basic parameter of the capacity analysis is PTSF (percent time spent following). By increasing the length of the passing distances, the positive impact increases significantly to a certain limit (optimum length). A further increase loses meaning (does not give a significant effect). The obtained results indicate that additional research could provide design guidance on optimum lengths of passing zone as the function of speed and traffic flow rate.
passing sight distance, optimal length, capacity analyses, PTSF
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Podaci o prilogu
1299-1304.
2018.
objavljeno
10.5592/CO/CETRA.2018.744
Podaci o matičnoj publikaciji
Road and Rail Infrastructure V
Stjepan Lakušić
Zagreb: Građevinski fakultet Sveučilišta u Zagrebu
978-953-8168-25-3
1848-9850
Podaci o skupu
5th International Conference on Road and Rail Infrastructure (CETRA 2018)
predavanje
17.05.2018-19.05.2018
Zadar, Hrvatska