Final answer:
The number of road miles in each watershed, use overlay to intersect the 'arteries' feature class with the watershed boundaries. Calculate the length of road segments in the intersected feature class to find the road miles in each watershed. Sort the results to identify the top three watersheds with the highest mileage. Create a map showing the mileage for each of these watersheds.
Step-by-step explanation:
In order to determine the number of road miles in each watershed, you will need to use the overlay function of the GIS software. In this case, the feature class to use is the 'arteries' feature class. First, overlay the arteries feature class with the watershed boundaries.
This will give you the road miles within each watershed. Then, you can sort the results to identify the three watersheds with the highest mileage.
Here are the step-by-step instructions:
- Open the GIS software and load the 'arteries' feature class and the watershed boundaries.
- Go to the overlay function and choose the option to overlay the 'arteries' feature class with the watershed boundaries.
- Run the overlay analysis and generate a new feature class showing the intersection between the arteries and the watershed boundaries.
- Use the GIS software to calculate the length of each road segment in the new feature class. This will give you the road miles in each watershed.
- Sort the watershed feature class based on the road miles column in descending order.
- Identify the top three watersheds with the highest mileage.
- Create a map showing the mileage for each of the three watersheds.