Track map of the <a href="https://en.wikipedia.org/wiki/Long_Beach_Grand_Prix" class="extiw" title="w:Long Beach Grand Prix">Long Beach Street Racing Circuit</a>.  The yellow and gray lines are the local streets for reference.  The gray transparent blocks over the streets and course are overpasses that interfere with the transmissions from the race cars.
<a href="//commons.wikimedia.org/wiki/User:Will_Pittenger" title="User:Will Pittenger">Will Pittenger</a>
<span class="int-own-work" lang="en">Own work</span>