Waterloo motorists may need to be a bit more cautious in the near future. Police officers in the city will begin using four portable photo-laser speed cameras, starting Nov. 15, 2017.

According to police chief Dan Trelka, crash rates have recently increased in Waterloo. City officials have made improving traffic safety a strategic goal. The Waterloo City Council approved use of the speed cameras on Aug. 7 following three readings and public input.

City officials said taxpayers will not have to incur any upfront costs for installation, operation and maintenance. Over time the system would be funded by the citations issued. The new equipment includes three hand-held units and a mobile trailer. The units capture high-resolution images and video of vehicles violating speed limits.

According to city officials, net revenue from the citations will be directed toward tax relief.

For a short time, motorists caught speeding by the devices get a break. Warnings will be issued to violators in areas where the cameras are in operation. Police plan to start issuing citations with fines on or about Nov. 30. Signs will be posted at major entrances to the city, warning drivers that photo enforcement is in use.

The speed camera locations will be chosen based on the number of violations recorded on a particular street, the number of accidents, and citizen input.

"We are giving our residents the power to determine where the cameras should used based on what they experience in their own neighborhoods and while traveling the streets of Waterloo," Trelka said.

Regarding the speed camera locations, residents are encouraged to make recommendations to Chief Trelka. Email suggestions to trelka@waterloopolice.com or by calling 319-291-4340, option 9.