Book 4.2 Faculty of Automotive and Transport EngineeringBook 4.2 · Sustainable and Intelligent Transport Systems, Technologies and Logistics FRI-20.21-1-SITSTL-01 ACTIVE AND PASSIVE ROAD SAFETY, LINKING DESIGN WITH FIELD PERFORMANCE OF CLEAR ZONES IN BULGARIA Cite Cite this paper× Citation styleAPA 7IEEEChicago Author–DateHarvardBibTeXRIS DownloadCopy Metodiy Steliyanov, Daniel Lyubenov, Dzhemal Topchu