That's why all the road signs have pictures instead of words for all the professional steering wheel holders.
I haven't heard the term professional steering wheel holders in awhile...lol
I drove a trailer truck into Chicago everyday for 7years... the very first thing I learned before I took that job was:
1. Always know where you are going and what lies ahead best you can.
2. Call ahead to the shipper or consignee to varify the routes.
3. Have a back up route in mind or be prepared to sit. NEVER EVER EVER GO EXPLORING IN A SEMI TRACTOR TRAILER(Having tools like maps showing all the low over passes/ bridges, restricted routes, no trucks routes no hazmat, weight limits & ect., certainly can make your trip go much smoother)
...and of course PAY ATTENTION TO DETAIL. READ THE SIGNAGE