🚀 go-pugleaf

In article <icss5to0bmdaj0oildum7t06cvidjl0dgj@4ax.com>,
Carey Gregory  <nospam@gw-dash-tech.com> wrote:
>Since you've apparently observed that one must be equal to or greater
>in height to an Iveco van in order to see over it, then it should be a
>simple matter for you to extrapolate to different relative heights.

   Actually, I was referring to the width of an Iveco.  They are sometimes
   positioned such that their width make them impossible to see /around/.
   And since no vehicle I've ever seen has a high enough seating postion
   to see over it, neither a truck driver, nor a car driver can see
   past it.

   Short of an Iveco or other commercial truck, I can see around and/or
   over virtually anything I need to, even driving a low car.  Since you,
   in your truck, can't see over those either, the advantage conveyed
   by your higher seating position is very small, as I said.

>If you're able to see over vehicles higher than the level of your
>eyes, then I congratulate you on your x-ray vision.

   Actually, lower vehicles have an advantage whenever roads are wet
   or otherwise reflective.  We can see brake lights reflected underneath
   vehicles at a greater distance than taller vehicles.

   This isn't much of an advantage, but probably enough to cancel out
   the small advantage of height.

   Not to mention that taller vehicles often have a problem with under-
   sized mirrors with insufficient adjustability.  I've seen drivers of
   many taller vehicles unable to see low vehicles immediately adjacent
   to them, because their mirrors only show objects at a similar height.

>Yeah, I read it.  You made an assertion.  I asked if you can support
>it.  Can you or not?  If it's just opinion, you only need say so.

   Shall I continue?  Okay.

   Another factor which significantly reduces the advantage of a higher
   seating position is the road.  Specifically, unless the road is very
   flat, and very straight, the driver of a low car still be able to 
   see beyond the preceding vehicle.  

   Also, even if a driver can see beyond the preceding vehicle, they
   still have to follow at an appropriate distance.  Since most trucks and
   tall station wagons cannot stop as quickly as cars, that distance needs
   to be sufficiently large so as to overwhelm any sightline advantage.

   To sum up; as I said, there is very, very little advantage.

--
 D a v i d  H i l l m a n
 nma, scca, scscc, imoc