Laserfiche WebLink
Roadway (Link Data) <br />After establishing the model area, the existing model was reviewed and updated. In <br />expanding the model, all roadways classified as local street or greater throughout the <br />study area were included. <br />Data attributes entered for the link layer in VISUM: <br />• Link Type <br />• TSys (Transport System) <br />• One-or Two-way Direction <br />• Number of Lanes <br />• Capacity <br />• Length <br />• Design Speed (or posted speed limit) <br />• TWLTL (Two-Way Left Tum Lanes) <br />Link Type <br />Link Type is used to describe the functional classification of the network links for the <br />Kittitas County model. The Type numbering corresponds to the FHW A roadway <br />classification numbering system. Link Delay functions are coded to operate with these <br />link types. It is important to code future network revisions with the correct link <br />classifications. Link types in the model are shown described in Table 1 and shown in <br />Figure 3. <br />Please note that there is no link type for centroid connector as VISUM has a special <br />layer for centroid connectors and thus they are not coded as links. Link type 99 was <br />used to denote the John Wayne Trail. Other links are in the model for future use but if <br />they are not given a Type number they have not been "activated" for use in the model. <br />Kittitas County, Washington Transportation Model-May 2009 Page 10