Stop Lines shall be designed using MUTCD section 3B-32 and supplements to the MUTCD. If a crosswalk is present, the stop line shall be parallel to the crosswalk and placed 4 feet in advance of the crosswalk to ensure visibility at the intersecting roadways for both the pedestrian and motorist. If a crosswalk is not required, the stop line shall be located based on the angle of intersection of the cross-street, sight distance, vehicle turning radius, signal timing, etc.

A Signal Warrant Analysis is required to determine if a signal is warranted. Included in the study are pedestrian movements at the intersection and surrounding area. The study will note which legs of the intersection shall be marked for crosswalks and pedestrian signals. Pedestrian signals will be considered at locations having marked crosswalks where additional passage and/or clearance time is required, where pedestrians must be held to avoid vehicle conflicts, or where pedestrians are given advanced passage time prior to vehicles being given a green light, and at established school crossings at signalized intersections. If an existing signal is in the project limits, the project engineer shall contact the Assistant District Engineer - Traffic for guidance on existing pedestrian movements and how that will affect the placement of ADA ramps and crosswalks.

The traffic engineer must coordinate closely with the OHD project engineer to ensure ADA compliance with the installation of the signal and its related hardware and signal cabinets, balancing the needs of utility poles and signal poles, signing and handboxes shall all be located outside the clear pedestrian route and the sight distance triangle for the intersection. Right of Way may need to be purchased to assure ADA compliance. The placement of unimpeded accessible ramps with proper markings needs to be determined, balancing the needs of highway design and the signal designer. Identification of significant pedestrian generators such as schools, churches, and community centers should be included in the discussion.

If a pedestrian signal is deemed warranted, pedestrian pushbuttons shall be located to ensure accessibility for pedestrians with disabilities. The following considerations should be evaluated when determining the location.

• Locate the pushbutton as close to the curb ramp without interfering with clear space requirements.
• Install the pushbutton on a level segment of the sidewalk rather than the curb ramp.
• Provide a level clear space in front of the pushbutton desirably 5’ x 5’, or minimum 3’ x 4’.
• Mount the pushbutton no higher than 42” above the sidewalk.