No Homicides in 2011 — It’s official: for the first time since at least the 1950s, Arlington County did not record a single homicide in 2011.

Another Book Dating Session — The Shirlington Branch Library is holding another Book Dating for Singles session, after the inaugural book dating event in October was deemed a success. This month’s book dating session will take place at 6:00 p.m. on Sunday, Jan. 15. Using books as conversation starters, participants will have three-minute “dates” moderated by library staff.

Arlington to Install Real-Time Traffic System — Arlington County is planning to install a real-time traffic system along Route 50. The system will track anonymous Bluetooth information from drivers’ cell phones in order to calculate the time it would take drivers to get from one point to another. [Washington Business Journal]