This paper looks into prospects of pre-timed
arterial traffic control systems for cities with limited
infrastructures. The methodologies for designing a pre-timed
arterial traffic controller system were researched. A prototype
designed and implemented in Field Programmable Gate Arrays
(FPGA) is presented. Dar es Salaam Roads have been used to
provide data for the design and implementation whereby the
neighboring road intersections within a logically computed radius
of less than 250m qualified for pre-timed arterial traffic
controller. One intersection is a master and the remaining ones
act as slaves. Using Very High Speed Hardware Descriptive
Language (VHDL), an algorithm has been developed for
coordinating adjacent traffic signals along the arterial roads. The
use of VHDL enabled the algorithm to be implemented and tested
in Xilinx Spartan 2E Field Programmable Gate Array (FPGA)
that functioned and served the purpose of real-time simulation of
Arterial Traffic Controller.
Sida-SAREC