A Bridge Information Systems Laboratory for Virginia (BISLVA)
This is a research laboratory focused on data mining and exploratory data analysis of bridge data for Virginia. This laboratory provides the Virginia Department of Transportation with a resource to conduct applied (problem focused) and exploratory research in informatics, data mining and exploratory data analysis of bridge data. The laboratory collects and warehouses all available legacy data on the bridges in Virginia including the historic NBI data, all available Pontis data and complementary data used to expand the scope of data analysis and modeling, such as climatic data, geologic data, geophysical data, transportation network data, socio-economic data, and natural hazard data. This complementary data is combined with and related to the bridge data and analyzed within a geospatial analysis framework.
Traffic Operations Laboratory at University of Virginia
The Traffic Operations Laboratory (TOL) was established to support research in the area of traffic operations with the-state-of-the-art systems including microscopic traffic simulation models, traffic signal timing optimization programs and a hardware-in-the-loop simulation (HILS).
State of the Art Computing Server
Two Xeon CPUs (X5680 12M Cache): 3.33GHz and 12-Core for each (so total 24 cores)
2.5 TB HDD (for Data Storage)
500 GB HDD (for System Storage)
Hardware-in-the loop simulation (HILS)
HILS is one of the most advanced forms of microscopic simulations for traffic signal control systems since it physically links a stochastic simulation model with actual traffic controllers. In this HILS simulation, actual traffic controllers operate traffic signals within the microscopic simulation model such as CORSIM, VISSIM or SimTraffic.
The TOL has the following HILS related equipment:
- NEMA TS2 Controllers
- 2070 Controllers
- 170 Controllers
- Controller Interface Devices (CID)
- With the advances in the computational technology, microscopic traffic simulation models have become more realistic than ever before by providing a fast, risk-free and visual evaluation environment. It is believed that microscopic simulation models have been widely adopted as a decision-supporting tool on various traffic operation and management studies.
- Signal cabinet and signal head
The TOL has the following simulation models:
In addition to microscopic simulation models, the TOL has the following dynamic traffic assignment (DTA) models:
Traffic Signal Timing Optimization Programs
The traffic signal system is one of the most common facilities being operated by traffic engineers to control traffic in an orderly manner. Traffic signal timing optimization has been recognized as one of the most cost-effective methods for improving accessibility and mobility at urban networks.
The TOL has the following programs: