Regulations of Connecticut State Agencies
(a) Preferential lanes are lanes where usage is limited according to class of vehicle or vehicle occupancy. Signing for these lanes should follow the standard regulatory signing principles — black legend on white background, rectangular shape, and reflectorized or illuminated if applicable during periods of reduced visibility.
(b) The diamond lane marking symbol used to designate preferential lanes should be incorporated in the body of the signs, as a white symbol on a black background.
(c) The signs are intended for use with a preferential lane to indicate the particular restrictions applying to that lane.
(d) Signs should be located adjacent to the preferential lane or should be mounted directly over the lane.
(e) The message format of a bus-carpool lane for overhead signs should have the following sequence.
(1) top line-lanes applicable (e.g. center lane, curb lane, right two lanes, this lane)
(2) middle lines-applicable vehicle (e.g. buses only, buses and carpools, buses and right turns only)
(3) bottom lines — applicable time and day (e.g. 7:00 to 9:00 a.m., 4:00 to 6:00 p.m., Monday through Friday)
(f) The message format of signs post mounted should have this sequence:
(1) top lines — applicable vehicles (e.g. buses only, buses and carpools, buses and right turns only)
(2) bottom lines — applicable time and day (e.g. 7:00 to 9:00 a.m., 4:00 to 6:00 p.m., Monday through Friday); the time and day are separated from a down arrow.
(g) The diamond symbol on these signs preferably should appear in the top left quadrant.
(h) When overhead lane use control signals or changeable message signs are used to convey the preferential lane-use restrictions, signs are not mandatory but may be used to supplement other controls.
(i) Pavement markings for these lanes shall be used in conjunction with these signs.
(j) Advance notification of preferential lane-use roadways is desirable "Restricted Lane Ahead" signs may be used for this purpose.
(k) At the end of a signed section of preferential lanes, a "Restricted Lane Ends" sign shall be used.
(Effective November 3, 1981; Amended December 23, 2005)