00A STOP signs shall be used on the flashing red approaches to intersections controlled by flashing signals, except where a green arrow is displayed in conjunction with the flashing red indication. STOP signs shall not be used on approaches where green arrows are displayed. They also shall not be used on flashing yellow approaches.

00B Any STOP sign installed at a railroad grade crossing shall be approved by the Commissioner of Transportation, as per Section 1685 of the New York State Vehicle and Traffic Law.

02A Figure 2B-101 may be used as a reference to help determine whether a STOP or YIELD sign is most appropriate for use at an intersection where control has been deemed necessary and intersection sight distance is a consideration.

02B Sight distances across the corners of an intersection and the prevailing approach speeds on the major and minor roadways are significant in determining whether a STOP or YIELD sign should be used. Figure 2B-101 is based on AASHTO research indicating that the clear triangular areas produced by the values in the table will permit the vehicles on either road to stop, if necessary, before reaching the intersection. Where control is desired, a YIELD sign may be used where the clear sight triangle can be provided; a STOP sign should be used where the necessary clear sight triangle does not exist.

02C Where the grade along an intersection approach exceeds three percent, the leg of the clear sight triangle along that approach should be adjusted in accordance with the values shown in Exhibit 9-53 in A Policy on Geometric Design of Highways and Streets, 2004 Edition.