During travel to a project site to conduct a well box replacement oversight, a driver changed lanes into the lane of the Stratus employee.  The public driver did not take into consideration that there was another car directly to the right in the opposite lane (did not look), and continued to change lanes and take control of the lane the Stratus employee was in.  The Stratus employee was forced to take immediate actions and executed an emergency lane change to avoid a collision with the public vehicle.  The Stratus driver was using defensive driving techniques and allowed for a buffer around the vehicle which afforded the ability to avert the situation and to change lanes to make room for the public vehicle.  The Stratus driver was not in the blind spot of the public driver and decided that a lane change was a safer option than braking to avoid a collision.