For another interesting look at the subject of travel times, check out Stanford's ORBIS (http://orbis.stanford.edu/#map), which lets you estimate travel times from one point in the Roman Empire circa 200 AD to another, based on several common modes of travel.
What's fascinating is how little transportation changed between 200 and 1800. Sixteen hundred years pass and the basic means of getting around are still the same: foot, horse, cart, boat. Then in the hundred years after that there comes an explosion of new options: bicycle, rail, automobile, airplane. Gives some perspective on how relatively new the travel technologies we take for granted today actually are.
What's fascinating is how little transportation changed between 200 and 1800. Sixteen hundred years pass and the basic means of getting around are still the same: foot, horse, cart, boat. Then in the hundred years after that there comes an explosion of new options: bicycle, rail, automobile, airplane. Gives some perspective on how relatively new the travel technologies we take for granted today actually are.