Multi-Criteria Analysis of Traffic Solutions to Increase Pedestrian Safety and Mobility in Zagreb Vrapče Pedestrian and Railway Flow Intersection Zones

Sigurnost i urbana mobilnost su bitni čimbenici prometnog sustava. U gradovima postoje uska prometna područja na kojima dolazi do presijecanja više vrsta prometnih tokova. Zone križanja pješačkih i željezničkih tokova zahtijevaju adekvatnu infrastrukturu i opremu kako bi omogućili zadovoljavajuću razinu sigurnosti bez ometanja prometnih tokova. Željezničko-cestovni prijelaz (ŽCP) mjesto je križanja željezničke pruge ili industrijskoga kolosijeka i ceste u istoj razini u sklopu kojeg u praksi postoji i pješački prijelaz ukoliko postoji promet pješaka. Zbog nedovoljno razvijene infrastrukture, loših prometnih rješenja ili lošeg stanja postojeće infrastrukture pješaci koriste improvizirane ilegalne prijelaze. Ovaj rad bavi se problematikom ilegalnih prijelaza preko pruge u zonama pješačkih i željezničkih križanja prometnih tokova u zagrebačkom naselju Vrapče. Promatrane lokacije sadrže infrastrukturu za siguran prijelaz preko pruge, ali iz nekoliko razloga većina pješaka ne koristi te prijelaze nego ilegalno prelaze preko pruge. Istraživanje u ovom radu obuhvatilo je detaljne analize postojeće prometne infrastrukture, postojećeg stanja sigurnosti i analizu prometnih tokova. Na temelju provedene analize predložena su nova prometna rješenja u svrhu uklanjanja postojeće problematike te povećanja razine sigurnosti i mobilnosti u promatranim zonama. Provedena je višekriterijska analiza primjenom metode Analitičkog hijerarhijskog procesa korištenjem programskog alata „Expert Choice“ kako bi se izabralo optimalno rješenje predloženih varijanata novih prometnih rješenja. Na kraju je izrađena analiza osjetljivosti i odabrano optimalno prometno rješenje.Safety and urban mobility are essential factors of the transport system. In every city there are narrow traffic areas where several types of traffic flows intersect. Pedestrian and railway crossing zones require adequate infrastructure and equipment to provide a satisfactory level of safety without disrupting traffic flows. Level crossing (LC) is a place of intersection of a railway or an industrial track and a road at the same level within a pedestrian crossing if there is pedestrian traffic. Due to insufficiently developed infrastructure, poor traffic solutions or poor condition of the existing infrastructure, pedestrians use improvised illegal crossings. This paper deals with the issue of illegal pedestrian crossings over the railway in Zagreb Vrapče pedestrian and railway flow intersection zones. The observed locations contain infrastructure for safe crossing over the railway, but for several reasons most pedestrians do not use these crossings but cross the railway illegally. The research in this paper included detailed analyzes of the existing traffic infrastructure, the current state of safety and the analysis of traffic flows. Based on the conducted analysis, new transport solutions were proposed in order to eliminate the existing problems and increase the level of safety and mobility in the observed zones. A multi-criteria analysis was performed using Analytic Hierarchy Process using the software tool "Expert Choice" in order to select the optimal solution of the proposed alternatives of new solutions. Finally, a sensitivity analysis was performed and the optimal traffic solution was selected