Hi, The Japan Automobile website (English page) says: "When there are no signs or markings indicating the speed limit, drivers of regular-sized automobiles must obey the speed limits of 60 km/h on ordinary roads, and 100 km/h on expressways." Wikipedia says: "The general limit is 60 km/h except for divided national highways where the limit is normally 100 km/h. Limits in Japan are different from most countries <snip> urban limits are set by zoning rather than statute." I've simplified it a bit. Am I correct in summarising like this? 1. If there's a speed limit sign then (obviously) that's the limit. 2. If there's no speed limit sign and there's a barrier separating the two sides of the road I can go up to 100 km/h. 3. If there's no speed limit sign and no barrier I can go up to 60 km/h. 4. I can't go lower than the minimum speed - I can't ever remember seeing this sign but it looks like this Am I missing anything? Thanks.