1 KEC, "Traffic volume data of expressway"
2 EuroRAP, "Star Rating Roads For Safety; The EuroRAP Methodology"
3 KEC, "Methods for increasing expressway serviceability to reduce drowsy-driving"
4 AASHTO, "Manual for assessing safety hardware"
5 JRA, "Installation specification of safety barrier and commentary"
6 AASHTO, "Highway Safety Manual"
7 MOLIT, "Guidelines for installation and maintenance of road safety facilities-safety barrier"
8 MOLIT, "Guidelines for full-scale vehicle crash tests of road safety facilities-safety barrier"
9 Austroads, "Guidance on Median and Centreline Treatment to Reduce Head-on Casualties"
10 Harwood, D. W., "Factors Contributing to Median Encroachments and Cross-Median Crashes" NCHRP 2014
1 KEC, "Traffic volume data of expressway"
2 EuroRAP, "Star Rating Roads For Safety; The EuroRAP Methodology"
3 KEC, "Methods for increasing expressway serviceability to reduce drowsy-driving"
4 AASHTO, "Manual for assessing safety hardware"
5 JRA, "Installation specification of safety barrier and commentary"
6 AASHTO, "Highway Safety Manual"
7 MOLIT, "Guidelines for installation and maintenance of road safety facilities-safety barrier"
8 MOLIT, "Guidelines for full-scale vehicle crash tests of road safety facilities-safety barrier"
9 Austroads, "Guidance on Median and Centreline Treatment to Reduce Head-on Casualties"
10 Harwood, D. W., "Factors Contributing to Median Encroachments and Cross-Median Crashes" NCHRP 2014
11 ECN, "EN 1317 European Standard for Road Restraint Systems"
12 KEC, "Development of a new high-functioning concrete median barrier with low fragmentation in impact event: Final" Korean Expressway Corporation 2016
13 Ceki E., "Defining the Different Parameters which can influence the need and selection of VRS" CEDR 2014
14 KoROAD, "Accident data of heavy vehicle: an excerpt from TAAS(Traffic Accident Analysis System)"