From the San Antonio MMDI Evaluation Report: Subsection 4.3.1 Freeway Management Expansion Costs
San Antonio, Texas, United States
Summary Information
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
|