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<br /> Mr. Fialho said the assumptions by which the roundabouts were constructed are still <br /> present today in staff's recommendation. <br /> Mayor Hosterman was aware that construction of the roundabouts was part of a larger <br /> cost for infrastructure. She asked staff to provide Council an estimate for the cost to install the <br /> two roundabouts. <br /> Mr. Wilson said staff did not break out the cost for the construction of the two <br /> roundabouts. <br /> Mr. Fialho noted that the bid was not itemized and the project was a complete package <br /> and a portion of it included the two roundabouts. <br /> Mayor Hosterman pointed out there would be a cost to remove the two roundabouts. <br /> Mr. Fialho said that was correct. <br /> Mayor Hosterman pointed out there are 187 homes that are in the constructed process <br /> in the Vineyard Avenue Corridor and Council does not know what the implications would be on <br /> Vineyard Avenue with the added traffic from these homes. If there were Council support and <br /> rather than remove the two roundabouts, she asked if there was an opportunity, given the space <br /> constraints that exist, to improve the roundabouts and make them safer and make the traffic <br /> flow smoother at a relatively livable speed limit, and also provide an opportunity for bicyclists <br /> and pedestrians to move through the roundabouts? <br /> Mr. Wilson said staff has been challenged with this question. The roundabouts are <br /> based on the fact that they are a proven entity in other jurisdictions and making them larger <br /> changes the entire functionality of the roundabouts of speed and how vehicles interact with <br /> them. Staff could not find a way to change the diameters of the roundabouts to improve them, <br /> and staff found it was on better grounds to stay with a proven standard for the roundabouts. <br /> Since the last Council meeting, staff has painted the curb of the roundabouts with reflective <br /> paint to make them more apparent to address the concern of not being able to see the <br /> roundabouts at night. <br /> Mayor Hosterman asked if the roundabouts have worked to reduce the speed of traffic <br /> on Vineyard Avenue? <br /> Mr. Wilson said yes. <br /> In response to an inquiry by Mr. Brozosky, Mr. Wilson said staff is aware of the traffic <br /> speed on both sides of the roundabouts and what the speed is for vehicles entering and exiting <br /> and for the area between the two roundabouts, the speeds are reduced. He noted that staff <br /> does not have a before and after comparison as Vineyard Avenue was not opened without the <br /> roundabouts. <br /> Mayor Hosterman invited public comments. <br /> Pleasanton City Council 15 10/18/05 <br /> Minutes <br />