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Automated Traffic Enforcement System at Diagonal DriveAutomated traffic enforcement (ATE) is one of many safety countermeasures that can be used to enhance roadway safety. Automated enforcement may involve the enforcement of red-light running violations and speed limit violations. The City of Cedar Rapids uses ATE systems to enforce red-light running and speed violations at three signalized intersections on the primary highway system. In addition, the City uses ATE systems to enforce speed violations at four locations along United States Interstate 380 (I-380).  There are two additional locations where the ATE system is in place, including the intersection of 42nd Street and Edgewood Road NE and the intersection of Center Point Road and Collins Road ramp (north side of Highway 100).  A list of all locations is available below.  The Police Department also uses a mobile photo radar vehicle that is typically deployed to areas where citizens are concerned about speeding violations in their neighborhood.

The use of automated traffic enforcement has resulted in a reduction in both crashes and crashes with injuries.  The system advances public interests in traffic safety and the safety of emergency responders.

If you receive a violation notice in the mail, please follow the instructions included with the citation for the proper procedures to review the violation, pay the citation, or contest the citation.  Additional information is also available through our website:

Contesting Citations

Most questions can be answered with information on this website or by using the instructions on the back of the citation.  Please see our Frequently Asked Questions.

If you have further questions, please email the Cedar Rapids Police Department at atecedarrapids@cedar-rapids.org.  Email is the most efficient form of communication for Automated Traffic Enforcement issues.  You may also call 319-286-5513.

Class Action Settlement Information

The City of Cedar Rapids is entering a settlement agreement in the case of Simon Conway, et al v City of Cedar Rapids.  Highlights of the Class Action Settlement are as follows: 

  • The Automated Traffic Enforcement (ATE) system is a legal and effective means of enforcing speed and red-light violations. 
  • The operation of the ATE Program in Cedar Rapids has successfully passed all constitutional and legal challenges.
  • The Simon Conway, et al lawsuit against the City was based on procedures for collecting on ATE citations – mainly use of the State Offset Program for collection of unpaid fines. 
  • To avoid additional time and expense to all parties, the parties have agreed to a settlement. 
  • Since this is a settlement, neither side won or lost, the case, and the City denies any liability, fault, and wrongdoing as part of this settlement.  Although there is currently no legal precedent in Iowa that would require the City of Cedar Rapids to obtain a court judgment before involuntary collection methods are utilized, the City has chosen to settle the case by refunding ATE fines and fees collected through the Offset Program in 2018, along with late penalties paid on certain citations.
  • The settlement only includes individuals whose citation fine and/or late payment penalty was collected through the State of Iowa Offset Program without a court judgment, and/or who voluntarily paid a late payment penalty fee in connection with the fine.
  • Individuals eligible for refunds will be sent a notice directly.
  • The settlement does not impact future issuance of ATE citations or collections.  In an effort to ensure its collection efforts are proper, the City has already updated its ordinance before it started issuing ATE citations again on July 1, 2019.  It now clearly provides that a Municipal Infraction will be filed with the Court, and a court judgment will be obtained before pursuing involuntary collection of citations and/or late fees.

Monthly Reports

The Police Department is committed to providing information to the public about the Automated Traffic Enforcement (ATE) system by providing a monthly report.  ATE is an important law enforcement tool for reducing both the number of crashes and crashes with injuries as the result of speeding and red-light running violations.  Monthly reports will be published that summarize the number of speeding and red-light violations, if applicable, at each location where the ATE system is in place.  The reports will detail the top speed recorded at each location.  The reports also include citations issued by residency of the vehicle owner. Crash statistics will also be updated monthly.

Most recent report: March 2020 

June 2019  November 2019
July 2019 December 2019
August 2019  January 2020
September 2019 February 2020
October 2019


Automated Traffic Enforcement Ordinance

The City of Cedar Rapids enacted Automated Traffic Enforcement in 2010.  An updated ordinance was passed in 2019.

Calibration Reports

Learn more about the annual calibration confirmations at each intersection and lane.

Automated Traffic Enforcement Camera Locations
Learn about the location of each of the automated traffic enforcement cameras in Cedar Rapids.

ATE Monitoring Equipment and Technology

Learn more about the safety camera technology and how these cameras work, including calibration and accuracy. Statement of Technology

Speed and Red Light Monitoring EquipmentLearn more about the equipment used to capture and record a speed or red light violation. Please note that the photographs are representations of types of equipment that are used, but may not be the actual model currently in use.  The technology and function are similar amongst models shown and those actually used.


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