Ride on a light rail vehicle and be a human packet
If you think about it, transportation systems are a bit like networks. Instead of packets, you might have a car, a bus, a truck, or a train. The bytes could be replaced by parcels or people, and the vehicle might be thought of as their "encapsulation".
Sure, this is a little goofy, but someone clearly had something like that in mind when they designed this light rail station near Cisco's offices in San Jose:
Why yes, those are the symbols Cisco uses for various flavors of switches and routers.
Silicon Valley: where the geekdom is molded into solid concrete.