We present two different approaches to minimize total
delay in signalized fixed-time controlled inner city
traffic networks. Firstly, we develop a time discrete
model where all calculations are done pathwise and vehicles move on
"time trajectories" on their routes. Secondly, an idea by Gartner,
Little, and Gabbay is extended to a continuous, linkwise
operating model using "Link Performance Functions" to determine delays.
Both models are formulated as mixed-integer linear programs and are compared
and evaluated by PTV AG's simulation tool VISSIM 3.70.
