Shine a spotlight on your Longest Highways with the Street Lamps Expansion. Draw additional Highways accompanied by Street Lamps but remember that you also have to turn them on to gain bonus points. With the addition of two dice containing only Highways, you will reach unprecedented Longest Highways, and you will also gain points for your activated lights.
Manage an infrastructure of Power Lines on top of your Route Networks and connect your cities to the Accumulator to ensure a constant supply of energy. Charge the Accumulator at the center of your board and build Power Lines connecting to your Exits. The Power Grid dice indicate the direction in which you will be able to electrify your Routes: at the end of the round you will electrify all of your adjacent Routes in the given direction, starting from an Exit or an electrified Route. When you electrify your Accumulator, it will charge up.
At the end of the game, you will gain points equal to the number of Exits connected to the Accumulator, multiplied by the number of charges on the Accumulator itself.