Bike route from Los Angeles to Charleston, SC - Need advice

[palma]

I am helping a friend who is biking cross-country to raise funds/awareness for his organization.  I planned his route from LA through Albuquerque, TX, MS, AR, AL, GA and on to Charleston, SC, using google maps and mapmyride and also looked at a few routes others have done.  I also looked at maps, of course.

The bikers (three of them) are British and new to the States terrain/roads and I am not a serious biker.  I was wondering if anyone out there could tell me if there might be any dangers I need to be aware of in mapping my route using google/mapmyride as one of the riders is nervous about getting into a crash (he saw that an olympian from the UK was hit on route 66).  Other than me actually driving the route myself and making notes, I know of no other way to ensure safety unless I were to completely take them on the Southern Tier route, which they don't have time to do. 

Perhaps, someone who is experienced with all this, can review my route or tell me what else I might do to ensure proper planning.

Thanks so much, in advance.

[Tandem4Rider]

Just one idea... contact local bike clubs and see if they have cue sheets and/or opinions about the roads you selected.

[Tim]

Forget Google Maps.  Use the ACA map system and you'll have a good start.