Consultant Services

Specifications include, but are not limited to: 1. Traffic Study Request a. Complete and Submit Online Traffic Study Request Whoever initiates the traffic study request will be required to do so through the online request form. The form will include a “Due Date” entry section. The minimum time to complete a traffic study will be 15 business days. A business day is defined as Monday through Friday excluding State holidays. It is estimated on average 20 business days to produce the traffic study. The online form MUST be submitted in order to initiate the traffic study request. b. Negotiate and Log Requests After the online form is submitted, the traffic study request is assigned to a consultant as outlined in the Tracking System Section under Consultant Assignment Process. If the initiator requests a due date that is less than the 15-day minimum, the decision to accept or renegotiate the due date will be determined on a case-by-case basis depending on resource availability. This determination will be made before a traffic study request is assigned to a consultant. This effort produces the following: • Assigned consultant • Traffic study due date 2. Prepare Traffic Study a. Develop Study The different types of traffic studies are as follows: • Traffic signal warrants • Left-turn signal warrants • Dual left-turn signal warrants • Pedestrian signal warrants • School zone studies/warrants • Speed limit/Speed studies • Crosswalk warrants • Advisory curve speeds (ball-bank studies) • No passing zone striping study • 48 Hour Counts • Corridor Traffic Studies • Intersection Control Evaluations Several official UDOT Policies provide guidance for traffic study work. These policies are listed below. • UDOT Policy 06C-05: Traffic Engineering Orders (TEOs) • UDOT Policy 06C-25: Establishment of Speed Limits on State Highways • UDOT Policy 06C-27: Marked Pedestrian Crosswalks at Uncontrolled Locations • UDOT Policy 06C-41: Curb and Pavement Marking for Parking Control • UDOT Policy 06C-42: Establishment of Pass/No-Pass Zones • UDOT Policy 06C-52: Left-Turn Phases at Signalized Intersections • UDOT Policy 06C-61: Work Zone Speed Limits b. Review Study Once prepared, the traffic study is reviewed as follows: I. A quality control check is performed by a certified Professional Traffic Operations Engineer (PTOE) on the Consultant Team. II. The study is submitted to the Traffic Study Review Engineer for approval. The Traffic Study Review Engineer has eight (8) business hours to either approve the study or request changes. • Once the required changes are submitted, the Traffic Study Review Engineer has 4 business hours to confirm the changes and approve the study. Because of the time sensitive nature of delivering traffic studies, this approval process does not allow for more than one set of changes to be requested by the Traffic Study Review Engineer. Once the 1st set of changes is confirmed the traffic study needs to be approved.