In San Antonio, Texas, an integrated freeway/incident management system was developed as part of a freeway expansion project. The project covered a 28.9-mile stretch of I-10, I-410, and US 281 in the northern region of San Antonio. The cost of the freeway and incident management expansion project was approximately $26.6 million with an estimated annual O&M cost of $852,000. The majority of the cost was for surveillance, detection, and information equipment and communications hardware. Detection technologies such as acoustic sensors, loops, and digital detectors, closed circuit television (CCTV) cameras, dynamic message signs and lane control systems, and supporting fiber optic communications infrastructure were deployed. The cost of mobilization (e.g., keeping traffic moving during deployment) during the expansion was approximately $2 million. This cost was kept low based on the planning decision to deploy the ITS components as part of the highway reconstruction.

Capital and annual operations and maintenance (O&M) costs associated with the freeway and incident management expansion project are provided below:

Equipment Description	Units	Deployment Cost	Annual O&M Cost
Temporary Traffic Barriers and Fences		$665,873
Shafts and Manholes		$514,054
Mobilization		$1,424,000
Permanent Traffic Barriers and Fences NA		$954,153
Fiber-Optic Cable and Conduits		$5,618,487
Signage		$645,275
Loop Detectors	444	$166,857
Communications Equipment		$6,333,171
Acoustic Sensors	63	$279,453
Digital Detectors	692	$267,594
Variable Message Signs (VMS) - Large	23	$2,035,257
Variable Message Signs (VMS) - Small	54	$2,340,763
Lane Control Signal Systems	76	$2,476,537
Other Infrastructure		$298,009
Miscellaneous Labor	2	$145,133
CCTV Cameras	33	$840,246
CCTV Field Equipment		$1,276,567
Traffic Signal Software Upgrade	1	$1,000
Planning Software and Management		$49,646
Police Cruisers and Officers		$50,063
Other Planning		$179,323
Workshops		$14,264
Loop detector maintenance			$24,601
Video camera maintenance			$152,000
Re-lamp LCS and VMS			$39,000
Maintain computer hardware			$25,000
Maintain communications equipment			$129,836
Maintain fiber cable			$115,185
48 % Share of 25 TransGuide Personnel (10)			$275,533
48 % Share of Software Maintenance and Upgrades			$78,724
48 % Share of Hardware Maintenance and Upgrades			$12,449
TOTAL		$26,575,724	$852,328