In 2005, the United States Congress established the national Safe Routes to School (SRTS) program in Section 1404 of the Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (SAFETEA-LU). Through a combination of engineering, education, encouragement, enforcement and evaluation strategies, the program was developed to address traffic safety, traffic congestion and air quality issues around schools, while also acknowledging the health benefits of active school travel.