What cause(s) traffic to backup on the San Diego – Coronado Bridge, Third Street and Fourth Street?
Traffic congestion on City streets is the cause of the majority of backups. Traffic congestion is a function of the number of vehicles vs. the capacity of the roadway and is typically measured in terms of Level of Service (LOS). Level of Service is a report-card scale used to indicate the quality of traffic flow. Level of Service (LOS) ranges from LOS A (free flow, little congestion) to LOS F (forced flow, extreme congestion). Traffic analysis(1) reveals that several intersections along the SR75/282 corridor operate at LOS D or worse during the morning and/or afternoon peak hour. Approximately 60% of the peak hour traffic is attributable to the vehicles traveling to/from NASNI. Daily traffic fluctuates and is heavily influenced by the number of carriers in port. This transportation corridor is one of the most heavily traveled residential corridors in San Diego County. Traffic conditions (existing and forecasted) will be addressed in the Project Report and Environmental Document (PR/ED)
