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Goals and Transportation Service Objectives <br /> <br /> · Placing conditions on project approvals consistent with Action Plan policies <br /> (e.g., requiring payment of fees or participation in the TSM/TDM program). <br /> · Circulation of environmental doc-m ents as specified in Action Plans. <br /> <br /> · Participation in Regional Mitigation Progr~m~ developed by the CCTA (for Contra <br /> Costa County jurisdictions). <br /> <br /> Preliminary TSOs were presented to the Tri-Valley Transportation Council (TVTC) in <br /> February 1993. After discussion and subsequent moai6caCion, the TSOs were approved <br /> by the TVTC in March 1993. The following list presents the approved TSOs. One or <br /> more will be applied to each regional route, different routes may have different TSOs. <br /> <br /> Link Levels o/' Service (LOS). M~nt~ LOS no worse than E (V/C = 0.99) on freeways <br /> and r~mps dttring the peak hours based on tr-fflc cotrote. This represents a very busy <br /> condition, with speeds about 35 mph on freeways. This standard is sometimes not met <br /> under today's traffic conditions. For freeways, thl, corresponds to the existing CMP <br /> standards. For arterials, the LOS standard is D on a ]~nlc basis. These are also subject <br /> to an intersection LOS standard. <br /> <br /> Hours olc Congestion. Maintain LOS E conditions on 1-580 for no more than two hours <br /> in the morning and two hours in the m%ernoon, except over Altamont Pass, where no <br /> TSO has been adopted. LOS E on 1-680 for no more than four hours in the morning <br /> and four hours in the evening. Given the gateway constraints discussed in Chapter <br /> this is the best the plan can achieve. <br /> <br /> Intersection Leoels o[ Seroice. Maintain LOS no worse than D (V/C = 0.90) for signal- <br /> ized intersections during peak hours where the standard is now being met. Achieve <br /> LOS D by 9.010 at locations not currently in compliance. The methodology is the VCCC <br /> program, which is based on critical movement analysis, with adjustments to raw <br /> model output turning movements. Th--'--. <br /> ;..-~-,~;~; ......... ~., ^'~'^-- Under current conditions, only three of the study <br /> intersections violate this standard. <br /> <br /> Tri-VGHey Gate~vctys. 1-580, 1-680, Grid Crou~ Canyon Road (Castro V'GZley to San <br /> RGmon) Gncl Vasco Road (north of Liuermore). Maintain existing capacity for single- <br /> occupant passenger vehicles. Wiclen~ng of gateways would cause the Tri-Valley area to <br /> be negatively affected by interregional traffic. (See Chapter ? for a complete discussion <br /> of this issue.) <br /> <br />Barton-Aschman Associates, Inc. 39 <br /> <br /> <br />