CHICAGO — When motorists travel along Robert Parker Coffin Road in north suburban Long Grove, they become subjects in a fascinating psychological test.
Before them sits a charming covered bridge that would fit right into a Robert James Waller novel. The only difference is the large yellow sign affixed to the wood that reads “8-foot-6,” a height significantly shorter than the average school bus or box truck.
Do the drivers of such vehicles heed the numerous warning signs before arriving at the bridge? Do they take a last chance to turn onto a side road? Or do they size up the opening and take their chances?
