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Comprehensive Plan Transportation Element with the alternatives described above. The travel demand model indicates that around 700 peak hour directional trips would be assigned from other north -south roadways to the new 66th Avenue corridor north of Oslo Road. In the current MPO LRTP, however, the 66th Avenue corridor does not exist. Since major projects require substantial cost and feasibility analysis prior to formal adoption, the 66th Avenue 4 laning project cannot be incorporated into the comprehensive plan at this time, but may be incorporated into a future comprehensive plan update upon completion of further study. Transit Alternatives With respect to transit, the Indian River County MPO modeled expanded transit service on the 43rd Avenue Corridor as part of the recently completed five-year Transit Development Plan — Major Update. According to consultant estimates, expanded transit service on 43rd 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 43rd 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 43rd Avenue. Level of Service Alternatives Given the absence of a viable roadway or transit alternative in the 43rd Avenue/27th Avenue corridor, the only option available to the county is consideration of an alternative level of service standard In order to implement a standard that maintains maximum volumes and threshold capacities, a Level of Service "E" plus 20% must be established as the minimum acceptable level of service standard for the following roadways: • 27th Avenue — South County Line to SR 60 • 43rd Avenue — Oslo Road to 16th Street Establishment of Level of Service `B" plus 20%, when applied in conjunction with the three- laning of the above facilities, will enable the maintenance of minimum volumes and threshold capacities until alternative transportation projects (such as the 66th Avenue corridor) can be explored and incorporated into future plans. The minimum capacity established under the "E plus 20%" alternative is 1,020 peak hour directional trips for a two lane facility. This capacity is adequate for the 921 trips anticipated on this facility in the near future. As three -lane facilities, 43rd and 27th Avenues will have a peak hour directional capacity of 1071 trips under "E plus 20%", which will provide ample capacity for new projects in the short term. Existing Roadway Deficiencies • Level of Service Community Development Department Indian River County 15