Lots of testing, a lot of masks: How automotive corporations hope to restart production

Vehicles required much greater road clearances than fashionable vehicles due to the poor state of roads and tracks, therefore the massive diameter skinny tires of the day which were effective at cutting through mud to succeed in more stable floor. The National Research Council’s highway research board conducted a collection of checks to find out the effect totally different highway surfaces had on automobile tires so as to resolve what type of roads were greatest suited to the proposed national highway system. Concrete or brick roads brought on a one ounce lack of rubber on a 500 mile trip. Gravel roads caused 2 to 7 occasions extra wear, and macadam, 10 to 50 occasions more wear.

The automotive enabled people to travel a lot additional afield than foot or horse had permitted. Sunday drives to country …