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Plan irnplernentafion, Monitoring, and Review
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<br /> Monitoring Transportation Service Objectives
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<br /> The Transportation Service Objectives (TSOs) are the heart of the TVTP. While
<br /> certain growth ass-mptions are a part of the plan, they serve merely to guide the
<br /> specification of a plnnned transportation system and finnnoting program. Thc ~.rTP
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<br /> Under existing conditions, the TSOs relating to freeway and intersection levels of
<br /> service are largely being met. Future growth should be matched with road improve-
<br /> ments so that the TSOs continue to be met. Achievement of the TSOs depends upon
<br /> successful implementation of the actions, measures, and programs set forth in
<br />" Chapter 9, "Action Plan."
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<br /> In Contra Costa County, if, following good faith implementation of the Action Plan, a
<br /> TSO is not met, then the Plan would need to be reevaluated through the forum of
<br /> TVTC and SWAT. Amendments to the Plan could include a relaxation of TSOs, a
<br /> strengthening of actions, or a combination of these approaches. In Alameda County,
<br /> the jurisdiction with the TSO violation can elect to modify growth rates, improve the
<br /> facility, or seek a lower TSO standard through the -- - -~--,----~_T-~c---~. process set forth o__.n
<br /> page 237 of the Plan, in ~;~ ~'' n_~^,
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<br /> The TSOs related to mode split and avenge vehicle ridership are goals for achieve-
<br /> ment by 2010, They need to be monitored and adjustments to the plan made if
<br /> progress is not being made, Progress should be defined as increasing transit ridership
<br /> and increasing average vehicle ridership,
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<br /> The TSOs should be monitored every two years. The following describes how each
<br /> should be measured. Each jurisdiction should report the results of their monitoring
<br /> activities to the TV TAC for review. Any TSO violations should be forwarded to the
<br /> TVTC with recommended actions.
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<br /> Freeway Levels of Service, The TSOs are expressed beth in terms of vol-rne-to-capacity
<br /> ratio (V/C) and hours of congestion, Vol-me-to-capacity ratio and hours of congestion
<br /> can be measured with traffic counts or speed rnng and should apply to mixed-flow
<br /> lanes only. The plan uses a capacity of 2,200 vehicles per lane per hour (1,100 vehicles
<br /> capacity for auxiliary lanes), Traffic counts can also be used to show duration of
<br /> congestion, Freeway monitoring should be done by Caltrnn.~ or the CMA,
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<br /> Intersection Levels of Service. Intersection levels of service should be calculated using
<br /> the VCCC program for AM and PM peak hours based on turning-movement counts.
<br /> Intersection monitoring should be conducted by the jurisdiction in which the intersec-
<br /> tion lies. The intent of the TVTP is to maintain the intersection TSO at all signalized
<br /> intersections. However, to avoid extensive data collection, each jurisdiction should
<br /> establish a list of critical intersections for monitoring.
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<br /> Barton-Aschman Associates, Inc. 235
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