The council today got to daydream about a city crisscrossed with a rainbow array of streetcar lines. One from South Lake Union to the UW; one up First Hill; one through downtown to the ID; and one from Westlake to Fremont and Ballard beyond. Gone from the original list were routes along Interbay, up Denny Hill and over the West Seattle Bridge (sorry, West Side!) because they were too expensive or technically not feasible. Though the numbers were rough, Seattle Department of Transportation officials report the proposed routes– which would cost hundreds of millions of dollars to build– could count on operational savings if bus service in those same areas is cut. But the problem with that, as noted by some of the more skeptical council members, is that you