Novi tip krožnega križišča: krožno križišče s ”pritisnjenimi” pasovi za desne zavijalce – ”flower roundabout”

Abstract

Recently, many of the foreign traffic-safety analyses point out the low level of traffic safety in multi-lane roundabouts. This problem is resolved in several ways in different countries however, the solution, whereby the number of conflict points is diminished (e.g. turbo roundabout) has proven to be the most successful. However, the turbo roundabout also has its deficiencies: it has conflict crossing points and larger reconstruction of the existing two-lane roundabout is needed when the turbo roundabout is to be implemented instead of the existing one. In the paper a new type of roundabout has been introduced the roundabout with âdepressedâ lanes for right turning (âthe flower-roundaboutâ). Financially speaking, the main advantage of the new type of roundabout is that it can be implemented within the dimensions of the already existing ânormalâ two-lane roundabout. From the traffic-safety point of view, the main advantage of the new type of roundabout is that it has no crossing conflict points. V zadnjem Äasu mnoge tuje prometno-varnostne analize kažejo na nizko raven prometne varnosti veÄpasovnih krožnih križiÅ¡Ä. Ta problem v razliÄnih državah reÅ¡ujejo na razliÄne naÄine, kot najuspeÅ¡nejÅ¡i pa se je pokazal naÄin z zmanjÅ¡evanjem Å¡tevila konfliktnih toÄk (npr. turbo krožno križiÅ¡Äe). Vendar ima tudi turbo krožno križiÅ¡Äe svoje pomankljivosti: ima konfliktne toÄke križanja ter v primeru, da želimo izvesti turbo krožno križiÅ¡Äe namesto obstojeÄega dvopasovnega križiÅ¡Äa, je potrebna veÄja rekonstrukcija križiÅ¡Äa. V prispevku je predstavljen novi tip krožnega križiÅ¡Äa - krožno križiÅ¡Äe s "pritisnjenimi" pasovi za desno zavijanje. Glavna prednost takÅ¡nega tipa krožnega križiÅ¡Äa je, da ga je možno izvesti znotraj meja obstojeÄega dvopasovnega krožiÅ¡Äa. S staliÅ¡Äa prometne varnosti ta tip krožnega križiÅ¡Äa nima konfliktnih toÄk križanja