Specifications include, but are not limited to: Safety Assessment of various Passing Zone Group RSA locations. The project will include an analysis of crash characteristics, current operational data (speed and volume), and planned construction and projected future operational characteristics. Work includes a field review of the RSA location. This project is interested in demonstrating cause-and-effect relationships between proposed solutions and expected outcomes. As such, the intent of these RSAs is to develop proposed solutions for documented vehicle crash histories that can be translated directly into future Highway Safety Improvement Program (HSIP) or state-funded projects. The final report will include: ● Recommendations for possible low-cost/short-term and higher-cost/longer-term countermeasures to the road characteristics to improve safety and operations. ● Crashes likely affected by the implementation of these changes Revised: 09/21/2023 ● Utilization of technology to determine rolling line of sight distance ● Crash modification factors (CMF) from FHWA CMF Clearinghouse or approximate CMFs based on peer-reviewed literature for the proposed changes - If available ● Concept-level design estimates of the changes ● Concept level benefit-cost ratios of proposed changes ● Consideration of higher cost/long-term options ● Review and comment on the adequacy or appropriateness of existing ADOT Passing Zone related standards implemented at the RSA locations
