Sustainable operation of on-street parking within Hilla City by Simulation Model (VISSIM) with Surrogate Safety Assessment Model (SSAM)

Abstract The preservation of sustainability poses an ongoing and persistent problem. To attain sustainability, it is imperative to prioritize the preservation of road traffic safety, the prevention of crashes, the utilization of pollution-free vehicles, and the secure transportation of commodities. The research approach employed in this study involves collecting data about many factors, including air pollution, noise levels, incident frequency, and traffic volumes. The study focuses on 20 links with on-street parking facilities in Hilla City, Iraq. This study uses the VISSIM microsimulation model SSAM software. This study used PTV VISSIM (Thesis) 2024 (SP 02). This license(Thesis) of PTV VISSIM software enables one to conduct the research unlimitedly, which is good for obtaining accurate results. The simulation time used in this study is 3600 seconds. PTV ViSSIM software enables the emulation of traffic movements on selected streets that contain on-street parking. Six streets in Hilla City are divided into 20 links. The streets were monitored using video recordings to collect real traffic data, which was then used to estimate delay and emissions. Additionally, trajectory files were created for future analysis. The SSAM program can be used to determine the conflicts in each link. The simulation models were effectively calibrated and validated using actual data. This study assesses the sustainable, social, economic, and environmental aspects of roadways, including on-street parking spaces. This project intends to construct a sustainable composite index utilizing existing data collection methods. Existing data on urban transportation sustainability considers economic factors like delay, social factors like safety, and environmental factors like noise and air pollution. The composite sustainability index incorporates economic, social, and environmental data, effectively tackling the difficulties related to normalization, weighting, and aggregation. This study aims to evaluate the long-term viability of transportation in Hilla’s central business area (CBD) by considering the incorporation of on-street parking. The Composite Sustainability Transportation Index (ICST) results for links with on-street parking in Hilla City indicate that the sustainability operation is evaluated at different levels: low (8 links), moderate (7 links), and high (5 links).