Your organization operates an internal shuttle service for employees, covering multiple pick-up points across the city. Currently, these shuttles stop at all points every 30 minutes between 7 am and 10 am, regardless of passenger presence. To enhance efficiency, the development team has already built an application on Google Kubernetes Engine, which requires users to confirm their presence and select their shuttle station one day in advance. With this setup, what approach should you take to optimize the shuttle service route and size?