Seattle Mayor Mike McGinn loves to use this chart to show the apparent inefficiency of the Viaduct tunnel. If you follow transportation policy or the Viaduct issue, you have seen it many times. It compares cost to how many cars would use it with two other road projects in Seattle.
He then argues we should not replace the Viaduct with a tunnel because it costs too much and provides too little benefit.
McGinn's efficiency argument against the tunnel is hypocritical when the mayor also supports light rail, which is even more expensive and carries fewer people.
Washington Policy Center took McGinn's chart and added some context by including a comparison to Central Link light rail costs and ridership, which McGinn supports.
