Beware that software development for ITS projects can be utterly complex, which demands avoiding pitfalls by following a rigorous systems engineering process.
Experience from iFlorida Model Deployment

Employ sensors that can account for a range of parking lot vehicle movements.
Experience from the smart parking field test at the Rockridge, Oakland BART station.

Recognize staffing and communication needs for Advanced Traveler Information Systems (ATIS) projects.
Experience from the Pennsylvania Turnpike Commission.

Recognize integration issues in Advanced Traveler Information Systems (ATIS) Projects, and follow the systems engineering approach to establish a project's foundation.
Experience from the Pennsylvania Turnpike Commission.

Exercise careful planning in preparation for issuing an RFP to help mitigate cost, schedule, and performance risks.
The Riverside Transit Agency experience with the methods of award and terms and conditions used to procure equipment and software for automatic vehicle location (AVL) and computer-aided dispatch (CAD).

Perform System Monitoring of 511 Systems.
A national experience with the development and deployment of 511 Systems.

Install an electronic transit card system to enhance rural transit agency performance and coordinate human service transportation between agencies to achieve more efficient services.
New Mexico's experience with the implementation of Intelligent Coordinated Transit Smart Card Technology

Test new signal timing plans, even on a shoestring budget.
Experience from a synthesis of signal timing projects.

Conduct a site survey when developing a new signal timing plan.
Experience from a synthesis of signal timing projects.

Optimize travel time messaging operations by improving the way in which data is collected, analyzed, and displayed.
Four American Cities' experiences with Travel Time Messaging on Dynamic Message Signs.

Provide drivers with sufficient managed lane information that can be easily disseminated and understood.
A guidance provided by the Texas Transportation Institute on providing user information in managed lanes facilities.

Anticipate last minute technical glitches when integrating computer aided dispatch (CAD) and transportation management center (TMC) systems and plan accordingly from the start of the project.
Virginia DOT’s experience integrating data from public works and public safety agencies.

Develop a thorough installation and implementation process as part of the ITS deployment.
Five rural transit agencies' experiences in applying ITS to rural transit.

Adequately invest and plan for the deployment of an Advanced Public Transportation System (APTS).
Experience from the Cape Cod Advanced Public Transit System.

Recognize the data requirements of an Advanced Public Transportation System (APTS).
Experience from the Cape Cod Advanced Public Transit System.

Structure software development ITS projects as a series of phased, smaller tasks with specific, incremental deliverables and associated acceptance testing.
A Washington State Department of Transportation implementation of a regional ATMS.

Create a successful public-private agency partnership based on good communications, flexibility, and minimal impact to partners' customers to deploy new technology.
A Washington State experience with testing of electronic container door seals through a freight supply chain.

Establish a strong acceptance testing program, with independent code reviews, for ITS projects with software product deliveries.
A Washington State Department of Transportation implementation of a regional ATMS.

Expect that new technology will require modifications before it is useable.
A Washington State experience with testing of electronic container door seals (E-seal) through a freight supply chain.

Use an appropriate procurement mechanism to support the implementation of multiple advanced traveler information technologies.
Institutional lessons from a partnership to implement emerging ITS technologies in the Seattle metropolitan area.

Use tested and effective traffic management systems for Transportation Management Centers (TMCs).
Eight states' experiences with ITS Traffic Management Systems for TMCs.