No stop need be made at any intersection where:
A. 
An officer is on duty and directs traffic to proceed;
B. 
An official traffic control signal is in operation and indicates that traffic may proceed;
C. 
The stop sign has been removed either pursuant to Section 12.20.160, or otherwise.
D. 
The stop sign has been covered as provided in Section 12.20.160;
E. 
The operator turns right into a highway from a separate right-turn lane which is delineated by markers or channelization, and no stop sign is in place at the intersection of such separate right-turn lane and such highway.
(Ord. 89-12, 6/27/1989)
The Director shall erect, or cause to be erected, yield right-of-way signs complying with provisions of the Vehicle Code at one or more approaches to an intersection of highways which are not through highways, where the Council has determined that because of lack of visibility, or because of the number of reported accidents or the apparent probability thereof, such signs are considered necessary, and where according to the principles and experience of traffic engineering the installation of stop signs is not justified.
(Ord. 89-12, 6/27/1989)