Memory requirements and processing time associated with running these new solutions remain independent of the number of records in the dataset. We demonstrate a variety of static and dynamic placement techniques, shown in the context of the LifeLines application. A control panel facilitates user customization of labels placement and aggregation mechanisms. Guidance material and other software aids facilitate learning. The simulation allows learners to close freeway lanes and divert traffic to an arterial road.
Users can see the effect of the detour on freeway and arterial delay.
Users can then adjust signal timing interactively on a time space diagram and watch the effect of their adjustment on green band changes and on arterial delays and total delays. However, because of the volume of information, which is presented textually, users often work hard to locate the most valuable items. However, it is usually difficult for users to find or create the coordinated set of visualizations they need. Users query their relational database and load results into desired visualizations. Then they specify coordinations between visualizations for selecting, navigating, or re-querying.