@article{ref1,
title="System reliability as a surrogate measure of safety for horizontal curves: methodology and case studies",
journal="Transportmetrica A: transport science",
year="2020",
author="Alsaleh, Rushdi and Sayed, Tarek and Ismail, Karim and Alrukaibi, Fahad",
volume="16",
number="3",
pages="957-986",
abstract="Reliability analysis has been advocated to account for the uncertainty in geometric design and to evaluate the risk associated with various design options. Most of the previous studies using reliability-analysis in highway design evaluated only one-mode of noncompliance. This study assesses the performance of horizontal curves using a system of multi-modal noncompliance (insufficient sight distance, vehicle skidding, and vehicle rollover). Five case studies of a highway in British Columbia are considered. Two approaches were used: (1) second-order reliability-bounds with FORM analysis (First-Order Reliability Method), (2) Monte-Carlo Simulation (MCS). A calibrated design chart that accommodates heavy-trucks on horizontal-curves with sharp-radii is provided. The results show that the differences in the system probability of noncompliance between one-mode and system of multi-modes of noncompliance are more pronounced for heavy-trucks. <br><br>RESULTS also show that the probability of noncompliance associated with vehicle rollover is significantly affected by the stability-ratio compared to height-ratio and roll-rate.<p /> <p>Language: en</p>",
language="en",
issn="2324-9935",
doi="10.1080/23249935.2020.1720859",
url="http://dx.doi.org/10.1080/23249935.2020.1720859"
}