So…… 25 sq miles. Let’s assume a 5 mile x 5 mile grid. Let’s put a bus route every half mile. That’s 20 bus routes. Let’s run a bus on each route every 15 minutes…. The buses run at an average speed of say 20 mph. So each bus takes 20 minutes to traverse the route in one direction. You would need 2 buses per route. That’s 40 buses. Let’s say it costs $100 per hour to run the bus. (Googled it). So that’s $4000/hr to run the entire system. Let’s run the system 16 hours a day. 4000 * 16 = $64000 per day. $23 million dollars a year. The 51,000 population would have 17,000 cars. 17,000 * $5000 = $85 million. So it would be much cheaper to have a bus system….