I ran across a pretty good article talking about being prepared should a motor vehicle driver strike you while cycling. You can read the full article on Bicycling’s website “What to Do Before (and Immediately After) a Driver Hits You“.
Here’s a “CliffsNote” version:
- Check insurance coverage, apparently most auto insurance covers you against uninsured/underinsured motorists even if you’re on your bicycle
- Ride with cameras, officers too often side with the motor vehicle driver in cyclist motor vehicle incidents
- Have emergency contacts easily available, some sort of physical document in case your phone is rendered inoperable in the wreck
- Have an action plan, sort of a checklist you and others in your usual riding group can follow should an incident occur
to battle MS you could attempt to do your longest ride on the longest day of the year. I had never done much more than a century so I was nervous as I approached the trail head that morning and as expected there was a small turnout of 45-50 riders. Gladly, I ran into a Strava friend and her husband, and we quickly put together 6 riders who wanted a more relaxed pace. This was my first extensive ride on a rail trail, and it was great not having to worry about vehicular traffic for 95 percent of the ride. The trails surface was smooth with only twigs, pine cones and puddles from a storm the day before to navigate. In the unpopulated sections of the trail there were a few 
protect ourselves from the nasty things the heat brings on…dehydration, leg cramps, sunburn, saddle sores…to name a few.