## 4 Results and Discussion
### Station Number  
A thorough examination of Hail City's anticipated automobile scene for 2030 was carried out, utilizing market knowledge and projections from multiple reliable sources According to [44], Hail City's population will increase to 582,152 by 2030. Hail City is expected to hold roughly 2.3% of Saudi Arabia's automobile market, according to [61]. Moreover, according to data from [62], the private automobile segment accounts for roughly 53.8% of the entire market. Figure 5 shows data for the transportation sector in the KSA in 2019 and 2022. When these observations are combined with an evaluation of the typical neighborhoods and family car ownership, a preliminary projection indicates that by 2030, Hail City will have about 250,000 cars. However, a more refined calculation, taking into account the average family size and the expected population growth, suggests that the total number of cars could realistically approach 304,000. This figure is detailed in Table 7. This illustrates the potential scale of automotive ownership in the context of Hail City's urban development and provides a solid foundation for further analysis of the SCSN's requirements to be sustainable.  
For the scenario with no private charging adoption, the highest concentration of charging stations was required in the central areas of Hail City. Based on what was explained in Section 3.2, the number of stations and the influencing factors were determined. Specifically, Zone 4 necessitated the maximum NS', totaling seven, followed closely by Zones 6 and 7, each requiring six stations. This pattern aligns with the expected higher demand for public charging facilities. Conversely, when the model incorporated a 60% PC rate, reflecting a substantial adoption of private charging solutions, there was a marked decrease in the demand for public charging stations. In this scenario, the NS' in Zone 4 was reduced to four, while Zones 6 and 7 each showed a decrease to three and four stations, respectively. Table 8 shows the adjusted number of PV charging stations for each region as a function of the PC ratio from 0% to 60%. It is important to note that, regardless of the PC rate, a minimum of two stations per zone is maintained to ensure operational reliability and to account for maintenance needs. This baseline ensures that even in zones with a lower demand, EV users have consistent access to public charging options.  
\begin{table}
\begin{tabular}{l c c c} \hline \hline
**Zone Name** & **Car Numbers** & **Zone Name** & **Car Numbers** \\ \hline
1. Al-Muntazah & 4938 & 10. Al-Shebily & 795 \\ \hline
2. Aja & 1517 & 11. Al-Naqa & 6176 \\ \hline
3. Al-Masyaf & 2320 & 12. Al-Rasf & 1805 \\ \hline
4. Al-Zahraa + Alkhazami + Alyasmeen & 71,273 & 13. Al-shefaa & 6891 \\ \hline
5. Al-Mamlaka + Alkhuraymi & 1059 & 14. Soq Al-Mashya & 5266 \\ \hline
6. Al-Samraa + Az Zibarah + Al-Muzaabar & 64,118 & 15. Al-Wadi & 3689 \\ \hline
7. Al-Wosaytaa + Almahata & 64,101 & 16. Al-Wudayy & 1574 \\ \hline
8. Al-Hanifah & 44,634 & 17. Al-Mada’en & 8265 \\ \hline
9. Al-Khamashya & 15,639 & Total & 304,060 \\ \hline \hline \end{tabular}
\end{table}
Table 7: Estimated number of cars (zonal).  
Figure 5: Car statistics in Saudi Arabia [62].