And if you notice, on school buses, they have mirrors for just that purpose.
Also when trained, you are instructed how close to park to the bus in from of you at an after school pick up. So close that children/people cannot walk between buses.

Trucks... I dont know about. But buses I do.
In a larger bus, I can say that the drive would not be able to see someone right there without those mirrors.

I would imagine that a truck driver has the option to put those mirrors on the cab.

One of my younger brothers is a long haul trucker and many of the newer ones actually have video cams on the front and back with monitors so they can see what is in their blind spots...it was like being in some weird control room...but that is odd how it caught his chair 'perfectly' to push into the grill like that...

Yeah, I am wondering how he got lodged in that way. He'd have to have been going to same way the semi was to do that? Because otherwise, wouldn't he have been lodged on there sideways?

Hmm, weird.

I wonder if we would have heard about this case if the guy had been run over and killed?

It could be that a part of the chair on one side got caught, and momentum spun the chair around to face forward.

last night at Disneyland I found that I couldn't help when I saw a wheelchair, to imagine it and it's occupant being rocketed down a highway in front of a semi.

http://www.woodtv.com/Global/story.asp?S=6623359

This page has a link to the mp3 of the 911 calls - the Granny seems to be the most composed, helpful of the bunch.

I wonder if that was some sort of land speed record for a wheelchair. he really should get something for that...beyond a change of shorts that is

Now everyone's goin to want to get one of these Semi-wheelchair combos

http://eastbound.ytmnd.com/

YEEEEHAW!!