A method for providing driving assistance is implemented by a driving assistance system and includes the steps of: continuously capturing images of the surrounding environment of the vehicle; performing an image processing procedure on at least one of the images; determining whether a traffic sign indicating a message is detected in the at least one of the images, and whether additional information indicating a condition associated with the message is detected with respect to the traffic sign; determining whether an alert action is to be executed based on the message and a current condition associated with the vehicle; and when the determination is affirmative, executing the alert action.