[ale] [OT]atlanta beltway need this!!!

[lists at serioustechnology.com (Geoffrey)]

Greg Freemyer wrote:
> On Fri, Nov 6, 2009 at 11:37 AM, Doug McNash <dmcnash at charter.net> wrote:
>> ---- Geoffrey <lists at serioustechnology.com> wrote:
>>
>>> So maybe someone can define the difference?  Or maybe simply define
>>> 'light rail?'
>>>
>> MARTA is light rail, is it not?
> 
> I'm pretty sure Marta is heavy rail.
> 
> Light Rail is more like a street car.
> 
> Mag Lev is of course when the train car is elevated above the track by
> magnetic effects.  I think some mag levs still make contact between
> the car and the track, but is for guidance primarily, not support (at
> least not while it is moving at speed.)

I thought maglev provided reduced friction but also forward energy?

-- 
Until later, Geoffrey

Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety.
  - Benjamin Franklin