brink wrote:

> "Arif Khokar" > wrote in message
> ...
>
>>Pat O'Connell wrote:
>>
>>>Arif Khokar wrote:
>>
>>>>A good driver knows how fast he's able to take a curve without the need
>>>>of an advisory limit. All he needs to know is that there's a curve
>>>>ahead and that it is constant radius.
>>
>>>AFAIK ramps are never marked as "constant radius."
>>
>>They don't have to be marked constant radius. Non-constant radius curves
>>on ramps and highways are not frequently encountered and should be noted
>>through yellow diamond signage.
>>
>>>>The last thing I'll look at while in a curve is what my speedometer
>>>>says.
>>
>>>It's your funeral.
>>
>>So you're saying that I should ignore what's ahead of me in the curve as
>>well as not pay attention to traffic on the road I'm planning to merge on
>>and just look at my speedometer then?
>
> how long does it take most people to glance at their speedometer? i use it
> as reference all the time when heading onto an offramp with a turn obscured
> by a bridge, a grade, or darkness. i rekon i can see in a split second what
> my current speed is as i decelerate, and i check that against the advisory
> speed limit.

If you just need an approximate idea, then your speed guage
should be readible through peripheral vision.