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Comprehensive Plan Transportation Element Located approximately 1 mile west of 43 `d Avenue, 58`h Avenue is a new, four lane divided north-south facility. According to modeled output extending 58`h Avenue south to Indrio Road in St Lucie County will also not adequately address level of service on 43 `d and 27`h Avenues. The remaining north-south roadways 20`h Avenue and Old Dixie Highway, are severely constrained by right of way. Both roadways are also classified as collectors , whereas 27`h and 43 `d Avenues are classified as minor arterials. In addition, land use adjacent to 20`h Avenue includes several public and private schools and school crossing zones. Consequently, neither facility can be widened without massive disruption to neighborhoods and businesses • therefore neither option is cost feasible. No other parallel facilities exist within the corridor. Since the surrounding neighborhoods are largely built out north of Oslo Road no new parallel roads could be built without displacement of existing neighborhoods. In the course of preparing its 2030 LRTP the MPO explored new alignments and other alternatives to address the 43`d Avenue and 27`h Avenue level of service considerations . Model analysis indicated that a major new roadway corridor, 66' Avenue (modeled as a new, five-lane facility from SR 60 to Oslo Road and as a new three-lane facility from Oslo Road to St. Lucie County), could relieve conditions on 43`d Avenue if developed in conjunction with the alternatives described above As indicated in the LRTP report. this relief would come about in year 2030 after all parallel and feeder routes are already constructed. and only if the MPO ' s future assumptions on growth and travel demand are realized . • Transit Alternatives With respect to transit the Indian River County MPO modeled expanded transit service on the 43 `d Avenue Corridor as part of the recently completed five-year Transit Development Plan — Major Update According to consultant estimates expanded transit service on 43 `d Avenue operating at the system standard one-hour headways would result in 10,843 riders/year. On a peak-hour basis this would translate into approximately 1 000 riders Divided out over 250 annual service days the impact of expanded service on the 43 `a Avenue corridor equals approximately 4 peak hour trips Even if the route were operated at one-half hour headways, the TDP analysis indicates that the route would not carry nearly enough riders to mitigate sufficient trips to maintain level of service "D" on 43`d Avenue. • Level of Service Alternatives Given the absence of a viable roadway or transit alternative in the 43`d Avenue/27`h Avenue corridor, the county adopted Level of Service "E" plus 20% as the minimum acceptable level of service standard for the following roadways: • 27`h Avenue — South County Line to SR 60 • 43 `d Avenue — Oslo Road to 16`h Street Community Development Department Indian River County 77