Search Content

This report summarizes the final results of the current project to enhance the KRONOS program. The resulting version, V8.0, being operated under the MS-DOS environment, can handle two freeways merging/diverging with a common section with total length up to 20 miles and eight lanes wide. The input data preparation is performed interactively using pop-up menu screen with a mouse. For instance, the geometrics are entered by selecting the configuration of each segment from the available alternatives presented on the screen. The current version has a total of 26 available segment types, which can treat most of the freeways in the U.S. Further, a new incident simulation module that can handle up to six stages in terms of time-variant capacities is also added to the new version. Following definition of the geometrics of each segment, the entire freeway can be plotted for verification. The other input requirements include the arrival/departure demand pattern at the freeway boundaries and ramps in user specified time intervals (minimum 1 minute). The demand patterns are also plotted for verification and can be as complex as desired. The program allows employment of user-specified flow-density models which are entered interactively. The change to input already entered can be made at any stage during the data entry. Note: The phase I report is available at https://hdl.handle.net/11299/156893.