How do I know if a city is connected by wireless?

There are three kinds of regional sharing.

1. Clustering: city plots in the region are clustered around a great work site such that each city has one and only one great work site. Each site (and its costs and benefits) are shared by the cities in that cluster.

2. Direct Road connection: Gifts and requests for regional surplus require direct road connections. Gifts include: Money, Commodities and Service Vehicles. Regional Surplus includes: power, water and ControlNet.

3. Any transport connection: Commuting residential agents (workers, shoppers, students) can use direct roads, indirect roads, trains, boats and planes to commute.