Gas prices soaring past $6.20 a gallon have Southern California commuters abandoning jammed freeways for bustling trains, as more residents trade their cars to escape the relentless cost of fuel. For many Angelenos, the price at the pump has made daily driving financially unbearable. With gas prices crippling daily budgets, Metrolink and other transit systems are seeing a noticeable surge in ridership as commuters search for cheaper alternatives. “There’s been a huge influx in the people on the