CDOT has promised about $4.5 million to upgrade a total of nine intersections around Denver.
Timothy Lovelace is accused of murdering Gordon Everts, 45, at the New Genesis shelter on May 11.
Republicans Sen. Cory Gardner and Rep. Scott Tipton said having the agency be headquartered out West would improve decision-making.
Colorado's law on self-defense in residences was the first of its kind and remains one of the strongest in the country.
Most of these intersections have four-lane streets, which are more dangerous for pedestrians and cyclists.