Linear Referencing

Understanding Customization and Data Cardinality in ArcGIS Pro by Displaying Job Survey Results

Problem and objectives

As a GIS analyst I was asked to determine if there is relationship between accident occurrence and road pavement type in Pitt County, NC and to develop customization of ArcGIS Pro interface to streamline the process The learning objectives for this part of the assignment were to extend the ArcGIS Pro interface by creating custom tabs and groups to access built-in functionality, locate, install and use third-party add-ins and explore and suggest customization techniques for your research or work application.

Analysis Procedure

Strategies: For this problem, I used ESRI's ArcGIS Pro 2.8 along with the Select by attributes and the make route layer event tool. For this project, the instructor provided data for the assignment in a zip file (Linear_referencing_data.zip) through Week 6 Block and included the following: A geodatabase containing routes for Pitt county, Tables including accidents and pavement data, and Shapefiles including cities and county boundary the tasks were to investigate accidents on roads in Pitt County and help determine the relationship between pavement conditions and accidents reported along routes. You are also requested to customize ArcGIS Pro interface to streamline a similar Linear Referencing process.

Method: Firstly, I added the folder containing The linear referencing data then I customized the ArcGIS Pro Interface Ribbon ” by clicking the Project tab > Options > Application > Customize the Ribbon I used to select by attributes tool to identify the route I was interested in and from the selection I was able to find the number of segment within the selected route 30000030 for each of the shapefiles I added into to map. Next, I choose the “Identify Route Locations” tool from the Add-In Tools group and then click on the selected route on the map (route 30000030) to find the min and the max. I made a route event layer for the “accident” events along ROUTE1 and repeated the process by making a route event layer for the pavement event to examine the RATING attribute, which is a value from 0 to 100, indicating the quality of the roadway. Finally I used Overlay Route Events tool from the Linear Referencing tab in the Events group to intersect the accident event layer and the pavement event layer to produce a new event table, consisting of records of pavement event segments where the segments contain accidents.

Process diagram

Results

Applications and Reflection

While completing this assignment I learned how to create custom tabs and groups to access built-in functionality and that linear referencing lets you store geographic information without a large number of explicit x-y coordinates. Instead, a measure (distance) along a linear feature is provided.

New Problem Description Use linear referencing to determine how many severe bike accidents have occurred in badly maintained mountain bike trails in Great Smoky Mountain national park,

Data Needed: Shapefiles of Great smoky mountain National Park from Their website with layers for trails and the park boundary. Detailed database from the Forest Managers with bikers’ accident information.

Analysis Procedures: Load shapefiles and the database into ArcGIS pro. Create an event layer for bike accidents, and another for Hiking Trails. Use Overlay Route Event tool to intersect trails layer with bike accident event layer open the new attribute table to sum trail segment length.

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