That’s a good question on race day, when — if you’re already stuck in traffic waiting interminably for the runners to pass — it’s a little late to take evasive action. So check out the approximate blocking times and race route, and plan accordingly to keep your annoyance factor to a minimum. Naturally, there are some streets that will be pretty-much blocked for much of the morning and early afternoon, but that is the price we pay for living in an area that is both scenic and home to a city-wide asset — the lake itself.