The traffic on this particular stretch of bike path is mostly buggy and utility e bike. The Amish are about 60% business now on e bikes. The jet age for them. A horse is about 5mph and a pain. An e bike is 20 mph for them and no feeding or resting. The speed limit on this stretch of bike path is 20 mph. 32kph. This bike path has a few gaps in it but its pretty continuous for 322 miles 515km. This bike path is up to 16 feet' wide and as little as 6 feet wide. There are small towns every 5-10 miles with populations from 200 to 7,000 people. Three of the towns are big, 1 million..
You might be getting the picture now as to why its not just one size fits all in the USA. Riding a bike path in Boston, USA is not the same as riding the Cowboy trail in Nebraska. USA.