Some of the sign boards would also refer to "BOB" -- the 65-pound running companion I had, which was a stroller full of gear, food and water. I logged about 10,000 miles with that stroller.
I must say that after logging a 30 to 50-mile day on the road, it always boosted my spirits to see a thoughtful welcome sign. As my running gained more media attention, I would not only see signs but also receive more honks from supportive drivers -- and believe me, I could tell an encouraging honk from a honk of annoyance about some guy running along the edge of the highway with a yellow jogging stroller!
Unfortunately, I never got to thank those who were responsible for putting up welcome board signs for me. So, I'll take this opportunity to say THANK YOU to those who took the time to encourage a lone runner on his journey. The words truly encouraged me!