Specifications include, but are not limited to: The Office of Traffic and Safety for the Iowa Department of Transportation (the Department) is interested in entering into a professional services contract with up to two consulting firms for work on roundabout reviews. The selected consultants for this contract will be expected to efficiently perform services related to providing brief, unbiased recommendations related to the review of roundabout designs and conducting feasibility reviews for potential roundabouts. Roundabout review may include any phase of a project from initial selection and layout to re-design of a roundabout. Reviews could include tasks such as feasibility studies, capacity and operational analyses, and reviews of design, lighting, signing, markings, etc.