Alan Mays

Alan Mays

Posted on 04/30/2015


Photo taken on April 30, 2015


See also...


Keywords

stopping distances
charts
Pennsylvania
stopping
ephemera
disks
mph
discs
printed
advertisements
data
typefaces
distances
miles per hour
Safe Driving Calculator
Motorist's Friend
Keystone Automobile Club
wheel charts
volvelles
calculators
motorists
organizations
slogans
fonts
drivers
advertising
autos
driving
circles
old
vintage
antique
cars
paper
blue
type
friends
borders
automobiles
information
safety
clubs
ads
circular
round
wheels
typography
red


Authorizations, license

Visible by: Everyone
All rights reserved

799 visits

How Quickly Can You Stop?

How Quickly Can You Stop?
For the other side of this wheel chart, see the Keystone Automobile Club Safe Driving Calculator (below).

"How Quickly Can You Stop? The average stopping distances in the Keystone Calculator are based on the average breaking distance plus the distance covered in ¾ of a second, which is the average 'reaction time,' the period which elapses between the instant danger is observed and the actual application of the brakes. . . . Keystone Automobile Club. The Motorist's Friend Since 1906."

Keystone Automobile Club Safe Driving Calculator

Smiley Derleth has particularly liked this photo


Comments