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Dick Willits, Via del Cielo, understood metering on Sunol and time delays going through on First Street. How many of the signals are affected by people crossing Sunol, which disrupts the flow of traffic. To what extent can signals be synchronized, so if you left Arlington and drove 30 mph you could get all the way to Shadow Cliffs without stopping. If you consider metering at Bernal to restrict flow going to town that will only increase traffic on Valley. Mr. Knowles said if one looks at the cut through percentage on Bemal and Sunol in the baseline report, there would be a reduction in traffic, assuming the construction of Highway 84. They have not modeled future street metering. In terms of signal synchronization, many people are not happy with existing timing. Because of ongoing technical improvements, he felt that by the end of the year traffic flow should be so good he would be coming back to Council to say how much more efficient the signals are. He further explained the dynamics of traffic signal timing and the differences that can occur. Ms. Michelotti referred to the metering at Sunol and the possible metering of Bernal and asked what would happen at Stoneridge Drive? Mr. Knowles said there are two different philosophies involved. The old one was when evaluating the West Las Positas interchange how could you maintain level of service D and let everyone get through town who wanted to. It is a completely different story when you talk about metering to reduce cut through traffic. That is a paradigm shift. If it's okay for Stoneridge to handle its own traffic, but not to allow everyone through town, the northbound off ramp from 680 will naturally meter people. Only so many cars can get off on that one-lane off ramp. There is a good chance Stoneridge may not need to be widened. Therefore, Stoneridge Drive may not backup or need metering. Mayor Pico asked why there is not a similar natural metering with the Bernal offramp? Mr. Knowles said there would be at a point, but the point at which Stoneridge and Bernal would naturally meter themselves far exceeds the downtown capacity. Mayor Pico asked if metering between the freeway and the Valley/Bemal signal was possible, perhaps at Koll? Mr. Knowles was trying to select locations that are signal controlled with few ways around them. The left turn into the Koll Center is signal controlled and it is possible to control how many cars can make that turn into the center and then exit the other side onto Valley. The test at Sunol shows that the signals can do that. Mayor Pico felt that if traffic is constrained going onto Valley, that is possible by regulating the number of cars that can make a left turn off Bemal onto Valley by the timing of the left turn lights at Bernal/Valley, plus the timing of the light at Koll. Pleasanton City Council Special Meeting Minutes 5 08/22/02