Summer is the peak time for farm machinery movement

And that creates danger for highway accidents, says Bob Schultheis, a University of Missouri Outreach and Extension agricultural engineering specialist.

"Years ago, with large cars and small tractors, the farmer usually was the loser in a collision. Now, many farmers have larger tractors and there are more smaller, lighter-weight cars on the highways. More motorists come out on the losing end," he said.

Schultheis has these suggestions for motorists:

--Slow down on roads where farm equipment might be found. Tractors travel at less than 25 miles per hour, so the motorist has less time to react and take avoidance measures. Reaction time may be as little as five seconds, especially on blind hills and curves.

--To avoid a sideswipe collision, watch for wide machinery when passing.

--Plan extra travel time to destinations when traveling on rural roads. Be patient. The farmer has as much right to use the road as the motorist.

Some advice for farmers:

--Make sure the rear of the tractor and each piece of equipment is marked with a Slow-Moving Vehicle (SMV) sign, and that is in good visible repair. The triangular, red and orange SMV sign should be mounted, with the point up, between two and six feet above the ground. Upgrade older signs with the new retro-reflective and fluorescent tapes to improve visibility.

--Turn on lights and warning flashers, if the tractor has them, to improve visibility. Use turn signals or hand signals when turning.

--If moving equipment on curving roads, roads with blind hills or roads lined with trees or high weeds, send a flag car ahead of the equipment to warn oncoming traffic.

--Stay alert and pull over to the shoulder where possible to let any buildup of traffic pass.

For more information, Schultheis says to contact the county Extension agent and request a copy of MU Guide G1960, "Safe Tractor Operation."