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Goals and Transportation Service Objectives · Pla~ng conditions on project approvals consistent with Action plnn policies (e.g., requiring payment of fees or participation in the TSM/TDM progrnm). · Circulation of environmental docH ments as specified in Action Plnn~. · Submission to Regional Committee of proposed revision(s) to Action Plan to mitigate impacts associated with proposed General Plan ~menrlments. General Plan nmendments that would reduce the effectiveness of adopted Action Plans may lead to a determination of non-compliance if the Action Plan c~qnnot be revised with the approval of the Regional Committee and the CCTA (for Contra Costa County jurisdictions). _ · Participation in Regional Mitigation program~ developed by the CCTA (for Contra Costa County jurisdictions). Preliminary TSOs were presented to the Tri-Valley Transportation Council (TVTC) in February 1993. After discussion and subsequent moclH~ication, the TSOs were approved by the TVTC in March 1993. The following list presents the approved TSOs. One or more will be applied to each regional route, different routes may have different TS0s. .Link Levels of Service (LOS). Maintain LOS no worse than E (V/C = 0.99) on freeways and r~mps during the peak hours based on traffic counts. This represents a very busy condition, with speeds about 35 mph on freeways. This standard is sometimes not met under today's traffic conditions. For freeways, this corresponds to the existing CMP standards. For arterials, the LOS stan~rd is D on a ]~nl~ basis. These are also subject to an intersection LOS standard. Hours of CongeStion. Maintn~n LOS E conditions on 1-580 for no more than two hours in the morning and two hours in the afternoon, except over Altnmont Pass, where no TSO has been adopted. LOS E on 1-680 for no more than four hours in the morning and four hours in the evening. Given the gateway constr_n~nts discussed in Chapter 5, this is the best the plan can achieve. Intersection Levels of Service. Maintain LOS no worse than D (V/C = 0.90) for signal- ized intersections during peak hours where the standard is now being met. Achieve LOS D by 2010 at locations not currently in compliance. The methodology is the VCCC program, which is based on critical movement analysis, with adjustments to raw model output turning movements. This is the standard to which all Tri-Valley jurisdictions presently adhere. Under current conditions, only three of the study intersections violate this standard. Tri-Vctlley Gateways. 1-580, 1-680, and Crow Canyon Road (Castro Valley to San Ramon) and Vasco Road (north of Liverraore). Maintain existing capacity for single- occupant passenger vehicles. Widening of gateways would cause the Tri-Valley area to be negatively affected by interregional traffic. (See Chapter 7 for a complete discussion of this issue.) Barton-Aschman Associates, Inc. 39