# An Overview of Intelligent Transportation Systems in Europe
## 5 Key Features of ITSs  
### Benefits of ITSs  
A wide range of benefits offered by ITSs significantly contribute to increasing the efficiency, safety and sustainability of transport networks across Europe. To address the challenges of accelerated urbanization, traffic congestion and environmental problems, these benefits are essential. To improve the user experience and optimize transport operations, ITSs use technologies such as AI and real-time data analytics [47].  
Figure 7 shows the benefits of ITSs, which include reduced emissions and pollution; improved road safety by reducing the number of crashes; increased economic efficiency by optimizing traffic flow and reducing costs; improved mobility by increasing comfort and accessibility; and public health benefits by encouraging a healthier lifestyle and reducing stress.  
\begin{table}
\begin{tabular}{c c c c c} \hline \hline
**City, Country** & **Year of** **Implementation** & **Type of ITS** **Implemented** & **Investment [Million EUR]** & **Results Achieved** \\ \hline Berlin, Germany [25] & 2021 & AI-based traffic management & 250 & 15\% reduction in congestion \\ \hline Paris, France [26] & 2022 & Smart parking systems & 180 & 30\% improved parking efficiency \\ \hline Madrid, Spain [27] & 2023 & Autonomous bus fleet & 200 & 20\% reduction in commute time \\ \hline Amsterdam, The Netherlands [28] & 2021 & Bicycle ITS integration & 150 & 25\% increase in cycling trips \\ \hline Vienna, Austria [29] & 2022 & Smart pedestrian crossings & 170 & 40\% fewer pedestrian accidents \\ \hline Milan, Italy [30] & 2023 & Real-time public transport & 190 & 10\% increase in public transport \\  & & tracking & & use \\ \hline Stockholm, Sweden [31] & 2020 & 5G-enabled traffic signals & 220 & 20\% reduction in travel delays \\ \hline Helsinki, Finland [32] & 2021 & AI-powered congestion & 230 & 18\% lower CO\({}_{2}\) emissions \\  & & control & & \\ \hline Brussels, Belgium [33] & 2022 & V2I communication systems & 210 & Improved road safety by 25\% \\ \hline Lisbon, Portugal [34] & 2023 & Electric bus fleet expansion & 260 & 30\% reduction in fuel costs \\ \hline Copenhagen, Denmark [35] & 2021 & Smart tolling system & 240 & 10\% increase in toll revenue \\ \hline Prague, Czech Republic [36] & 2022 & AI-based transit scheduling & 200 & 15\% improvement in bus \\  & & punctuality & \\ \hline Budapest, Hungary [37] & 2023 & Intelligent intersection control & 180 & 12\% decrease in traffic congestion \\ \hline Warsaw, Poland [38] & 2021 & Smart highway system & 250 & 20\% improved traffic flow \\ \hline Bucharest, Romania [39] & 2022 & ITS-integrated metro system & 220 & 10\% more metro users \\ \hline Cluj-Napoca, Romania [40] & 2023 & Integrated smart transport & & \\  & & systems (smart lights, & 160 & Enhanced urban efficiency and sustainability) \\  & & & e-tcketing, real-time into) & & \\ \hline Riga, Latvia [41] & 2023 & Electric tram modernization & 210 & 15\% energy savings \\ \hline Tallinn, Estonia [42] & 2021 & Real-time urban mobility apps & 190 & 20\% improved transit efficiency \\ \hline Vilnius, Lithuania [43] & 2022 & Smart pedestrian monitoring & 180 & 30\% reduction in pedestrian accidents \\ \hline Sofia, Bulgaria [44] & 2023 & Intelligent traffic cameras & 170 & 12\% more effective law enforcement \\ \hline Zagreb, Croatia [45] & 2021 & AI-based vehicle tracking & 160 & 10\% reduction in transport delays \\ \hline \hline \end{tabular}
\end{table}
Table 1: Results achieved through implementation of ITSs in urban areas.