express service
... that within a year of implementing express service , San Francisco Bay Area commuter rail system Caltrain experienced a 12 percent increase in ridership?
... that within a year of implementing <b id="mwAWQ"><a href="./Caltrain_Express" id="mwAWU" rel="mw:WikiLink" title="Caltrain Express">express service</a></b> <i id="mwAWY">(train pictured)</i>, San Francisco Bay Area commuter rail system <a href="./Caltrain" id="mwAWc" rel="mw:WikiLink" title="Caltrain">Caltrain</a> experienced a 12 percent increase in ridership?