One more interesting way to simulate driving around asteroids of various sizes

Two weeks ago I wrote a post here showing the surface area, surface gravity and escape velocity of asteroids of various sizes in order to give some idea of what it would be like to actually explore or live on the surface of one of these, given the fact that the difference between Little Prince-style asteroids where one can break orbit through a simple misstep and 21 Lutetia-sized asteroids where one couldn't break orbit without a velocity similar to a commercial jet is not well known.

One other interesting way to simulate the size of an asteroid is to use this driving simulator here. It's an online simulator that uses Google Maps, and is quite simple in that one does not need to worry about any obstacles - cars, trees, mountains, nothing is a hazard and you can just drive straight through. This makes it a very good tool to show the circumference of an asteroid, i.e. how long it would take to drive from one point all the way around and back again. So let's take a look at the same asteroid sizes given in the chart, and this time instead of giving surface gravity and escape velocity we'll look at their circumference as well as how long it takes to drive around them at various speeds. The simulator goes up to 160 kph, so we'll go with 50 kph (city driving), 100 kph (highway driving) and 160 kph (crazy highway driving or a casual ultralight airplane).

Ceres has been added to the end too even though it's technically not an asteroid.

Diameter	Circumference	One revolution at 50 kph	100 kph	160 kph
100 m	314 m	22 seconds	11 seconds	7 seconds
500 m	1570 m	112 seconds	56 seconds	35 seconds
1 km	3140 m	226 seconds	113 seconds	70 seconds
2 km	6.2 km	7.5 minutes	226 seconds	141 seconds
3 km	9.4 km	11.2 minutes	5.6 minutes	212 seconds
5 km	15.7 km	18.8 minutes	9.4 minutes	5.9 minutes
10 km	31.4 km	37.6 minutes	18.8 minutes	11.8 minutes
15 km	47.1 km	56.5 minutes	28.2 minutes	17.6 minutes
20 km	62.8 km	75.2 minutes	37.6 minutes	23.5 minutes
25 km	78.5 km	94 minutes	47 minutes	29.3 minutes
30 km	94.2 km	112 minutes	56 minutes	35 minutes
35 km	110 km	2.2 hours	66 minutes	41 minutes
40 km	126 km	2.5 hours	75 minutes	48 minutes
45 km	140 km	2.8 hours	84 minutes	53 minutes
50 km	157 km	3.1 hours	94 minutes	47 minutes
60 km	190 km	3.8 hours	114 minutes	59 minutes
70 km	220 km	4.4 hours	2.2 hours	82 minutes
80 km	250 km	5 hours	2.5 hours	94 minutes
90 km	282 km	5.6 hours	2.8 hours	107 minutes
100 km	314 km	6.3 hours	3.1 hours	118 minutes
125 km	392 km	7.8 hours	3.9 hours	146 minutes
150 km	470 km	9.4 hours	4.7 hours	2.9 hours
175 km	550 km	11 hours	5.5 hours	3.4 hours
200 km	628 km	12.6 hours	6.3 hours	3.9 hours
250 km	785 km	15.7 hours	7.85 hours	4.9 hours
300 km	942 km	18.8 hours	9.4 hours	5.9 hours
Vesta (529 km)	1660 km	33 hours	16.6 hours	10.4 hours
Ceres (950 km)	2984 km	60 hours	30 hours	18.7 hours

So if someone wants to know for example how large 21 Lutetia is (the asteroid Rosetta flew by just a few weeks ago), tell them to go to the driving simulator, rev it up to 160 kph, and watch the world pass by for 107 minutes. That's one revolution around 21 Lutetia.

The driving simulator also has an odometer so when actually driving you can just keep an eye on that instead of the clock.