Menlo Park police officers Roy Lacy and Felicia Byars have been appointed to new positions with the recently reinstated motorcycle traffic unit, the city announced June 27.

The unit was re-established in January to focus on improving traffic enforcement near schools and other areas of concern identified by residents, business owners and the police chief's citizens advisory group.

The city provided statistics that show the overall collision rate has dropped 20 percent and injury-related collisions by 29 percent since the start of the year.