Uber is rolling out a new app feature to help riders ensure they get into the right vehicles.The "safe ride checklist" gives riders a splash screen with safety tips to remember when getting into an Uber vehicle. Tips provided include confirming that the license plate number in the Uber app matches the license plate on the car.License plate numbers, driver photos and vehicle information are given to riders when a trip is requested.The feature follows several allegations of sexual assaults against Uber drivers.