Ann: Preliminary Final Report, page-35

A small snippet below but read the link

https://www.tesla.com/blog/supercharging-cities

It is extremely important for our customers to be able to easily charge their cars. The most convenient way to charge is to plug in overnight at home, and for most people, this is all that is needed. However, for customers who use their car for long distance travel, there is a growing network of Superchargers located along highways on popular driving routes. We have also installed thousands of Destination Charging connectors at hotels, resorts and restaurants that replicate the home charging experience when you’re away from home