Affiliated Computer Services Inc. said it will install and maintain an additional 24 fixed-speed enforcement cameras in Montgomery County, Md., as part of an amended and expanded contract.

The contract is valued at an estimated $19 million if all renewal options are exercised.

ACS currently provides Montgomery County with six mobile speed enforcement units, as well as violation processing and customer services that include pay-by-Web, pay-by-phone and integrated voice response systems.

ACS also has photo enforcement contracts in Dallas, Atlanta, Baltimore, Cleveland, Denver, Providence, R.I.; San Francisco and the state of Illinois.

Dallas-based ACS (NYSE:ACS) provides business process outsourcing and information technology.

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