30mph
A posted speed limit sign indicates the maximum speed permitted on the roadway for daytime or nighttime. In the case of the example in the question, the permitted speed at all times would be 55 miles per hour.
That's the maximum permitted speed on that section of road.
there is a slight difference. Maximal is an adjective meaning the highest or greatest possible. Maximum can be an adjective meaning as great, high or intense as possible or permitted or a noun or adverb. So in certain contexts they may not be the same - the vehicle's maximal speed may not match the maximum speed allowed on the motorway.
Maximum Permitted Mileage
maximum permitted length of bat is 38" inches.
maximum permitted length of bat is 38" inches.
16 lbs
The maximum speed of a 747 is Mach 0.92.
The maximum speed of MCA is 10 MHz
FMVSS 108 says the maximum candlepower of headlamps is 200,000
100
15