Adaptive offsets for signalized streets

Measuring Impact of Adaptive and Cooperative Adaptive Cruise Control on Throughput of Signalized Intersections

To properly assess the impact of (cooperative) adaptive cruise control ACC (CACC), one has to model vehicle dynamics. First of all, one has to choose the car following model, as it determines the vehicle flow as vehicles accelerate from standstill or decelerate because of the obstacle ahead. The other factor significantly affecting the intersection throughput is the maximal vehicle acceleration...

A Prototype for Adaptive Association of Street Names with Streets on Maps

We present work in progress on the development of a partially-automated system for interpretation of map images. The principal aim of our project is to demonstrate that an adaptive system can decrease operator intervention with increasing conversion volume. The extracted information is evaluated against an established database, and a cost model is constructed to evaluate the entire conversion t...

Strouhal-Reynolds number relationship for vortex streets.

A rationale for the empirically observed Strouhal-Reynolds number relation for vortex shedding in the wake of a cylinder is provided. This rationale derives from a mechanism of vortex formation observed in numerical simulations of two-dimensional vortex shedding coupled with an order of magnitude estimate of the terms in the vorticity transport equation based on this mechanism.

New Detection System for Rural Signalized Intersections

Project Summary Report 0-4022-S – 1 – Traffi c engineers are often faced with operational and safety challenges at rural, high-speed signalized intersections. Vehicleactuated control, combined with multiple advance detectors, is often used to improve operations and safety. However, this type of detection and control has not always eliminated rear-end or right-angle crashes. Crashes sometimes co...

Isolated Signalized Intersections