Federal 'new start' grant money cannot be used on existing rail corridors. Hence this part is being funded as part of the caltrain modernization project, which

Federal 'new start' grant money cannot be used on existing rail corridors. Hence this part is being funded as part of the caltrain modernization project, which is literally under construction as we speak. It will turn the existing 2-3tph corridor into at least 10tph each way with all the standard features of a European/Japanese/Chinese train line.