Advocates for the increased tax cited its potential benefits to alleviate congestion along U.S. 101, which Carl Guardino quipped "has become so congested that we've changed its name to the '101 Parking Lot'." Detractors pointed to Caltrain's bureaucracy and stated fares should be increased to improve services instead. A poll of 1,200 voters in early May indicated support was sufficiently strong enough to pass the sales tax increase, if the tax would result in expanding ridership capacity. The poll was sponsored by the Silicon Valley Leadership Group (SVLG), headed by Guardino, which predicted that daily ridership could rise to 250,000 with the improvements in service funded by the dedicated sales tax increase. Potential capital projects which could use the dedicated funding include additional electric multiple units (making electric trains 8-EMU consists, rather than 6-EMU), extended boarding platforms, and the proposed Downtown Rail Extension to the Transbay Transit Center. A dedicated tax was proposed in 2011, contemporaneously with the prior budget crisis, but polls at the time indicated insufficient support. After SVLG's May 2017 poll indicated strong support, they petitioned Hill to act.