that are moved.
- Street Objects and Routing Objects Packages
Many transportation applications are concerned with road networks. Commonly segments of road in the network are identified solely by a descriptive name. Additionally, locations along road segments are determined not by absolute location but with a relative method of addressing. Street names and addresses have become integral related attributes for virtually all road networks. The ArcGIS? Transportation Data Model groups these attribute objects together at Street Objects. The development and maintenance of Routes for transit systems that operate across networks has long been a staple of transportation management. A number of objects can assist in that process. The ArcGIS?Transportation Data Model groups these objects together as Routing Objects.
- Location Referencing Package
Location Referencing is one of the most essential processes within a wide range of transportation applications. The ability to quickly and accurately determine locations of objects in the field is of paramount importance for the safe and efficient operation of our transportation networks. The ArcGIS?Transportation Data Model provides a template set of objects to allow for the implementation of Location Referencing systems within transportation applications. This template also exploits several built-in capabilities of ArcGIS?
- Relationships and Domains Packages
Features and Objects within the ArcGIS?Transportation Data Model do not exist by themselves, nor should they. There are many possible relationships between objects. Some relationships within Packages are forms of direct inheritance from parent objects to their children. When more complex relationships between objects exist, these can be formalized with the relationship classes. A Package exists to specify these relationship classes. Attributes of objects can be constrained to have only
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