[QUOTE]Aeroplanes can go around breakdowns, and those breakdowns can easily be taxied eventually out of the way.QUOTE]
That's not to say that there are international airports where you
can't taxy out of the way/go around aircraft easily. e.g. Sydney 16R/34L departures.
Seems like a great idea for taxy-ins... no worries about jet blast. Those single engine taxys on 777's scare the hell out of me (especially where there is a slope up to the gate).
Remote holds are common now, with aeroplanes starting engines unmonitored by ground staff.
You just have to convince every airline and aviation authority that this is as safe as monitored starts.
I'd be interested to know if they've done a proper study on the wear and tear of the nose wheel/tyres and supporting structure.
Rgds
NSEU