Analyzing the safety effects of different operating speeds for an autonomous shuttle bus service

• DOI: 10.55329/beui4479
• Publication Date: 2025-03-26T13:56:41Z
• Authors: Maria G. Oikonomou; Marios Sekadakis; Christos Katrakazas; George Yannis

This study aims at evaluating the impacts of different operational speeds an autonomous shuttle bus service on road safety by increasing Connected and Automated Vehicles (CAVs) Market Penetration Rate (MPR) combining network characteristics. A microscopic simulation analysis was performed in order to quantify impact automated within traffic. In traffic Villaverde, Madrid, several scenarios were simulated using Aimsun software considering various CAV MPRs (0%–100%), service, namely 15, 30, 45 km/h. From simulation, vehicle trajectories extracted analyzed Surrogate Safety Assessment Model (SSAM) that identified conflicts. Statistical then negative binomial regression frequency conflicts involved as dependent variable. The revealed conflict is lower when operates or 30 km/h compared 15 km/h, with speed showing largest reduction. reduction probably due adapting more easily average synchronized flow. Furthermore, greater MPR results steadily decreased shuttle's adaptability collaboration connected vehicles. current establishes a solid relationship for AV shuttles enabling stakeholders optimize towards future