2006 David Devine Special to the Arizona Daily Star Aug 14, 2015 Aug 14, 2015 Updated Aug 20, 2015 Los electores aprobaron invertir más dinero en mejoras viales de la ciudad. Ron Medvescek / Arizona Daily Star Prefer us on Google Learn More Facebook Twitter Bluesky WhatsApp SMS Email Print Copy article link David Devine Special to the Arizona Daily Star 2006Regional Transportation Authority’s $2.1 billion road and transit improvement plan is approved by voters, bringing street widenings, increased bus service and a modern streetcar. Subscribe to stay connected to Tucson. A subscription helps you access more of the local stories that keep you connected to the community. Be the first to know Get local news delivered to your inbox! Sign up! * I understand and agree that registration on or use of this site constitutes agreement to its user agreement and privacy policy. Related to this story Timeline of Tucson's First 240 Years Some of the major historical events that have shaped Tucson.