WA hops on rest stop bandwagon: The state is offering Wi-Fi at 28 of 42 rest stops with free access to road conditions and travel information. Internet access is $1.99 for 20 minutes, $3.99 per day, $7.99 per week, and $29.99 per month. Service just launched to be ready for coming Labor Day weekend. The state has a rather complicated map that uses a big no-no in using icons to convey meaning. They have four logos that convey one implicit piece of information and two explicit addenda. The presence of the icon indicates a rest stop, so that's implicit: the icon appears wherever that's available.
The two addenda are whether the rest stop has an RV dump site or just wireless. This produces four icons: rest area only, rest area with dump site, rest area with wireless, rest area with dump and wireless. The wireless icon thus varies in size and color, and appears in two different forms in the list of amenities below the map, too.