Analysis of information sources in references of the Wikipedia article "Yellow line (road marking)" in English language version.
Mr. Marples: Double yellow lines on the carriageway in a parking meter zone indicate a ban on waiting at all times, except for the picking up or setting down of passengers; they also indicate a ban on loading or unloading between 8.30 a.m. and midnight. I have authorised the use of these carriageway markings under the powers given to me in Section 51 of the Road Traffic Act, 1960.
