4.1 Userís View of the System

The Vision and Strategy component of the Catalyst methodology states that a good system design flows from the perspective of those who will actually use the system. A well-designed system will mesh ease of use with broad functionality, minimizing user effort while maximizing results. Our familiarity with MDSHA, with the existing CHART system, and with the current and future realities of Marylandís transportation system allows us to design from just such a perspective.

In this section, we will discuss how the CSC/PBFI Team has applied the userís perspective to develop a broad technical approach that is feasible, practical, and responsive to project requirements.


The CHART II system will provide system operators and managers a set of tools to use in managing traffic congestion throughout the instrumented areas of the Maryland CHART network. The system will be capable of monitoring traffic conditions in the State through a broad range of field devices. The effectiveness of the CHART II system will depend on the ability to collect, process, and manage traffic information on the roadway system. The collected data will be used by operators to make real-time traffic management decisions, select traveler information displays and messages, and implement the appropriate control strategies to improve traffic flow throughout the State.

The CHART II system will provide a single display map from which operators will be able to monitor the State from a CHART II workstation. Workstations will be comprised of two monitors. The additional monitor will provide operators with greater flexibility for managing traffic in the State. Operators will have the ability to run Microsoft software applications on one monitor while monitoring traffic conditions through a display on another monitor.