Unposted Speed Limit

Does anyone know the rules concerning speed limits and wheter they are required to be posted? I live in Maryland and was pulled over for doing 47 in a 30 but the speed limit is not posted on the road, and the road was a divided highway two lanes each side. The road branches off a road which has a speed limit of 45 mph and the buildings are closer to that road than the one I was on.

After getting a ticket i would have drove to the nearest 7-11 and bought 2 or 3 disposable cameras and start taking picturs of where you were stopped, plus the road in front of you and in back....

Find out exactly and get a map and pinpoint exactly where the last 30 mph sign was.....

if the 30 mph was posted BEFORE a main road where everbody turns on to then people would assume the speed limt could be 45, since there was nothing to say 30.

In essence mark the route you took and where all the speed signs are.

that will be the evidence you need to try and win.

[JETX]

Per the Maryland Transportation Code:
"§ 21-801.1.
(a) Unless there is a special danger that requires a lower speed to comply with § 21-801 of this subtitle, the limits specified in this section or otherwise established under this subtitle are maximum lawful speeds. A person may not drive a vehicle on a highway at a speed that exceeds these limits.
(b) Except as otherwise provided in this section, the maximum speed limits are:
(1) 30 miles an hour on:
(i) All highways in a business district; and
(ii) Undivided highways in a residential district;
(2) 35 miles an hour on divided highways in a residential district;
(3) 50 miles an hour on undivided highways in other locations; and
(4) 55 miles an hour on divided highways in other locations.
(c) Except as provided in subsection (e) of this section, a posted maximum speed limit lawfully in effect on December 31, 1974, is a maximum lawful speed even if it differs from a limit specified in subsection (b) of this section.
(d) Except as provided in subsection (e) of this section, a maximum speed limit specified in subsection (b) of this section or in effect under subsection (c) of this section may be altered as provided in this subtitle.
(e) (1) Notwithstanding any other provision of this subtitle, a maximum speed limit of more than 55 miles an hour may not be established or continued on any highway in this State that:
(i) Is not an interstate highway or an expressway; or
(ii) Would subject the State to federal funding sanctions under 23 United States Code § 154.
(2) Subject to the provisions of paragraph (1) of this subsection, a maximum speed limit of more than 65 miles an hour may not be established on any highway in the State.
(f)(1) Unless otherwise posted on a public road in a residential subdivision, in residential subdivisions in St. Mary's County, a posted speed limit on a main access road applies to all public roads in the residential subdivision, even if the posted speed limit on the main access road is less than 30 miles per hour.
(2) The provisions of paragraph (1) of this subsection do not apply when a through road traverses a residential subdivision. The maximum speed limit applicable to the subdivision shall be posted on each road exiting off the through road and into the subdivision, along with the posting on the main access road.
(3) A maximum speed limit established under this subsection in a residential subdivision shall be based on the subdivision's road design, motor vehicle traffic, and pedestrian safety."

Also of interest:
[url]http://www.nhtsa.dot.gov/people/injury/enforce/stspdlaw98/mdspeed.htm[/url]