General questions
- Where can I get sample data to evaluate Esri Roads and Highways?
- Can I run Roads and Highways on a virtual machine?
- How do I migrate my data to Roads and Highways?
- How do I configure the precision and scale for my measures in Roads and Highways?
- Where can I get the HPMS capabilities of Roads and Highways?
- How do I upgrade my LRS when moving to a newer version of Roads and Highways?
Roads and Highways questions
- What are the minimum system requirements for Roads and Highways?
- Can I use Oracle SDO_Geometry with Roads and Highways?
- Can I use the ArcGIS Desktop editing tools to edit centerlines in Roads and Highways?
- Can I use the core ArcGIS Desktop editing tools to directly edit Roads and Highways LRS Network routes?
- Can I use the ArcGIS editing tools to directly edit Roads and Highways event feature classes?
- Can I edit the same route in different geodatabase versions?
- Why do I get an Underlying DBMS error or ORA-01012: not logged on message when I resume my edit session?
- Why do I get the message Unable to create logfile system tables. User lacks permissions or resources to create tables when I'm loading data into Roads and Highways?
- Can I use topology with Roads and Highways?
- How do I restrict certain users from being able to change the configuration of networks and events in my LRS?
Roads and Highways conflict prevention
- Is conflict prevention mandatory for Roads and Highways?
- When I edit a route in Roads and Highways, why am I prompted to acquire a route lock?
- When I edit an event in Event Editor, why am I prompted to acquire an event lock?
- What are route locks and event locks?
- How do I release route or event locks someone else has created?
Troubleshooting
General questions
Where can I get sample data to evaluate Esri Roads and Highways?
Can I run Roads and Highways on a virtual machine?
Yes. It's important to ensure that the virtualized environment meets the minimum system requirements needed by Roads and Highways. In the case of local virtualization, or running a virtual machine player on a local machine (not a cloud), it is important to note that the minimum system requirements are what the emulated environment needs to provide to Roads and Highways. This is in addition to the virtualization environment's minimum system requirements to support the virtualization software.
How do I migrate my data to Roads and Highways?
The storage model for organizations looking to migrate to Roads and Highways is not the same for all: some have a spatial LRS with geometry, and some do not; some use the geodatabase, and some do not. The general steps to migrate are as follows:
- First understand the Roads and Highways minimum schema for common centerline storage (two tables and two feature classes).
- Understand the data requirements for event data to map against a Roads and Highways LRS.
Learn more about registering an event in the LRS geodatabase
- Translate your LRS and centerline storage model into these tables.
This process is different for each organization. In some cases, where multiple linear referencing methods and networks need to be supported, centerline conflation may need to take place. Look at the LRMs your organization currently has and see if there are opportunities to consolidate and reduce the number of linear referencing methods and networks. If you can get your networks into an ArcGIS PolylineM feature class, there are scripts on the Roads and Highways community that can help with the migration.
- Once the LRS data is migrated, configure the LRS using the LRS data model.
- Choose which event tables or data to model in the geodatabase under the management of Roads and Highways, migrate them into the geodatabase, then register them with the network they reference.
Learn more about registering an event in the LRS geodatabase
How do I configure the precision and scale for my measures in Roads and Highways?
The precision and scale for the networks comes from the settings on the measure column of the calibration point feature class. This information is propagated to each network.
The precision and scale for events comes from the settings on the From Measure and To Measure columns on the event feature class.
Where can I get the HPMS capabilities of Roads and Highways?
You can get them from the Roads and Highways community.
How do I upgrade my LRS when moving to a newer version of Roads and Highways?
There is a context menu option in the Catalog window in ArcMap on the LRS node of the geodatabase. Click the command to upgrade the LRS and upgrade your event tables to event feature classes. The operation can take several minutes.
If your LRS was using a 10.2.2 or earlier version of Roads and Highways, you are presented with the option to enable conflict prevention in the LRS when you upgrade, which is disabled by default.
Roads and Highways questions
What are the minimum system requirements for Roads and Highways?
The system requirements for Roads and Highways include the system requirements for Roads and Highways. The memory (RAM), disk space, and processor power need to be adjusted based on the data volumes with which you are working. For working with linear referencing data in Roads and Highways, it is recommended that you at least double the minimum RAM requirements specified by Roads and Highways to allow for some of the memory requirements needed by Roads and Highways event measure behavior processing logic.
Can I use Oracle SDO_Geometry with Roads and Highways?
Yes, SDO_Geometry is supported for use with Roads and Highways.
Be aware that there is a limit on the number of vertices in an SDO geometry object. For highly densified routes of long length in your network, this limit could be reached.
Can I use the ArcGIS Desktop editing tools to edit centerlines in Roads and Highways?
Yes, you can use ArcGIS Desktop editing tools to create and reshape centerlines.
However, to split, merge, and delete centerlines, use the tools provided on the Roads And Highways Editing toolbar. These tools ensure that the relationships the centerlines have with routes are honored after the operation and are not broken.
Can I use the core ArcGIS Desktop editing tools to directly edit Roads and Highways LRS Network routes?
No. Though the software does not prevent you from doing so, the routes in the LRS Network feature classes should never have their shape, route ID, from date, or to date directly edited. The edit activities (create route, extend route, retire route, realign route, and reassign route) on the Roads And Highways Editing toolbar should be used for making changes to routes in a network.
If you accidentally edit and save changes on a route or set of routes in an LRS Network, the change can be repaired using the Generate Routes tool or by right-clicking the LRS Network in the geodatabase in ArcCatalog and in the Catalog window in ArcMap by clicking Generate Routes.
Can I use the ArcGIS editing tools to directly edit Roads and Highways event feature classes?
Event feature classes (events modeled in the geodatabase and registered with Roads and Highways) are events that have a shape column managed by Roads and Highways. You should not edit event shapes. When you edit event attributes, route IDs, from dates, to dates, and measures in the ArcMap attribute table, and Roads and Highways updates the shape. Roads and Highways also provides REST services to support editing event feature classes in a manner that allows Roads and Highways to update the shape.
If you accidentally edit an event feature class shape and save the changes, Roads and Highways has a menu option in the Catalog window in ArcMap on the geodatabase for the LRS event node that is registered with Roads and Highways. Click Update Event Shapes to correct the shapes of the events.
Can I edit the same route in different geodatabase versions?
Though Roads and Highways does not prevent more than one user from editing the same route at the same time in different versions, this practice is discouraged. If two or more users edit the same route in different versions and attempt to post and reconcile into a common version, conflicts are detected on the route feature class for the network and potentially other elements as well, such as the centerline feature class and event. Since Roads and Highways modifies event measures based on network edits in multiple event feature classes based on preconfigured rules, manual reconciliation of conflicts can be prone to error.
The recommended approach when this happens is for the second (and any other) user to refrain from posting and rolling back changes, accepting changes from the parent version, and redoing the edits.
Why do I get an Underlying DBMS error or ORA-01012: not logged on message when I resume my edit session?
This can happen when you are connected to Oracle from ArcMap and you have been idle for a while. By default, an Oracle database times out an idle connection after 60 minutes of inactivity. This time-out may be more or less, depending on your Oracle configuration. Once an idle connection time-out occurs, the Oracle database session ends and an error message displays.
Save edits and stop editing before closing an ArcMap session. However, if an error occurs, you can close ArcMap and reopen the MXD.
Why do I get the message Unable to create logfile system tables. User lacks permissions or resources to create tables when I'm loading data into Roads and Highways?
Can I use topology with Roads and Highways?
Yes, Roads and Highways supports creating and maintaining topology on your data in an LRS. To create a topology, put the feature classes that are to participate in the topology into a feature dataset in the geodatabase containing the LRS.
If you have not created the minimum LRS schema, create one and place the feature classes that participate in a topology in the feature dataset you created. Typically, the calibration points, centerlines, and network feature classes would make sense to participate in a topology. For example, you could configure a topology rule to ensure that networks or centerlines don't have dangles or a rule to ensure calibration points are always on centerlines.
Once you have the appropriate feature classes in a feature dataset, you can create and validate the topology.
How do I restrict certain users from being able to change the configuration of networks and events in my LRS?
To restrict modification of LRS, LRS Networks and Events configuration, provide only write access to the LRS_METADATA, LRS_EVENT_BEHAVIOR for those users you want to be able to modify the LRS configuration. Other users need read access.
Learn more about configuring user permissions for editing LRS Networks
Roads and Highways conflict prevention
Is conflict prevention mandatory for Roads and Highways?
No, conflict prevention is not mandatory. When you upgrade your LRS on the 10.2.2 or earlier version of Roads and Highways to a later version, conflict prevention is disabled by default. You can change these settings in the LRS properties. Conversely, you can choose to disable conflict prevention settings after they have been enabled in the LRS.
When I edit a route in Roads and Highways, why am I prompted to acquire a route lock?
Conflict prevention settings for your LRS are reflected when editing in ArcGIS Desktop. If conflict prevention is enabled, you are prompted to acquire locks when performing cartographic realignments, in all of the editing activities, editing calibration points, generating and updating intersections, and during event registration.
When I edit an event in Event Editor, why am I prompted to acquire an event lock?
What are route locks and event locks?
Route locks are a capability in Roads and Highways conflict prevention that allow a user to prevent other users from editing a route and events on a route while the route is being edited. When a route is locked, only the user with the lock can edit the route and events on the route in the version the lock was acquired. To acquire a lock on a route, a user must first reconcile with the lock root version. To release a lock on a route, a user must post changes to the route and events on the route to the lock root version.
Event locks are a capability in Roads and Highways conflict prevention that allow a user to prevent other users from editing events for an event layer on a specific route. When events for an event layer on a route are locked, only the user with the lock can edit those events on the route in the version the lock was acquired. Other users can acquire event locks for the same route on a different event layer if needed. To acquire an event lock, a user must first reconcile with the lock root version. To release an event lock, the user must post changes to the locked events to the lock root version. If any event locks exist for a route, no users can edit the route until all event locks are released.