They cluster them in at least 3's. If the three by my house are completely blocked (the cable is almost as long as the car), in use, or broken (one was kicked i

They cluster them in at least 3's. If the three by my house are completely blocked (the cable is almost as long as the car), in use, or broken (one was kicked in recently, now fixed) and I desperately need a charge (which has only happened once) there are at 10-15 more within 5 or so minutes walk. Ubitricity has shown a concept where they have smaller extender posts off the lamp posts, which I guess they'll be able to install if an area gets really busy.