A modeled map. You will create something similar in this tutorial.
Most prioritized lists of regional transportation projects begin with the existing transportation network. Your current network will include:
The existing federal, state, and local roadways;
Funded projects that are, or will be, constructed;
Network performance data including traffic, accidents, and average speed; and
Special activity center or corridor designations.
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This tutorial will guide you through the process of modeling your existing transportation network. Below, we will use ESRI’s ArcGIS Online. Scroll down to get started. To return to the main field guide page, click here.
Intro to ArcGIS Online
ArcGIS Online allows you to make a wide range of free maps, like this!
For most of this exercise, you won’t need to sign in or sign up to be a member of ESRI. However, you should consider it if you want to save and share you finished map (end of step 5). You can also stay up to date in the GIS world and have access to some of their other services. Click here to sign up.
You may be unfamiliar with using any other map viewer aside from Google Maps. This works exactly the same, some would argue better. Take notice of the navigation tools at the top left.
The navigation tools for ArcGIS Online
The crosshairs will zoom to your computer’s destination (if you allow your location to be accessed); the plus and minus buttons will zoom the viewer in and out; and the house button will return you to the “home” extent which is a view of the entire United States. Use the mouse to adjust the extent.
The quickest way to find your location of interest, is to use the search bar located at the top right of the screen. For this exercise, we will assume we are located in Blytheville in Mississippi County.
You will notice as you type in your location, the autocomplete function will assist you.
Searching for Blytheville
Arriving at Blytheville
Now that we have arrived, in the next step we will begin to add some data to our map.
Adding Web Layers
Analyze and explore datasets
Now we will begin adding data to our map using the existing datasets within ESRI’s database. Start by clicking Modify Map button at the top right of the screen.
The Modify Map button will let you begin to add data
You may have noticed at the top left of the screen, a new icon with the word Add has popped up. This is how you will add new data to the map.
The Add Button
Click Add and select “Search for Layers” to browse all of ESRI’s available layers. ESRI has over a million available datasets available globally, so we will use the search box to narrow down our search.
Search for layers
Search layer menu
Let’s search for traffic data, by entering “traffic” in the search box. Then add a layer by clicking “Add” next to the corresponding layer you are interested in. Below I found traffic counts and traffic flow ratings.
Finding traffic counts
Adding traffic counts
Clicking on traffic counts
Finding traffic flow
Visualizing traffic flow
Note: ESRI has so many layers because they allow all of their users to add to their database. You may notice some layers do not show up within your map, this may because the layer is local and/or geography specific.
If you want to remove a layer, click the “Remove” button.
Removing data layers
If you are curious about some of the data in the viewer and want to find out more specifically what it means, check the legend. Click on the Details button, and then click on the Legend button. The legend will show you some more information about what you are viewing.
Now, let’s search for other valuable transportation data: accidents, retail spending (a trip attractor), and road network.
In addition to removing layers, you can also reorder layers if they are overlapping. Within the Details section, there is a Content button which allows you to turn on/off layers, adjust transparency, and also drag-and-drop to order the layers for visibility.
OK, now we’ve taken advantage of some online datasets, but what if we want to add some custom layers? Proceed to the next section to learn how to do just that.
Add Custom Layers
This tutorial will show you how to create custom layers like this one!
Now is your chance to add custom elements to the map like special activity centers or corridor designations. To start, click on the Add icon and select “Add Map Notes”.
Add Map Notes
Let’s create a corridor. For name, write in “Downtown Access Corridor”. Next to template, you can choose from a number of options that give you pre-styled icons and colors. Select “Map Notes” and click “Create”.
Downtown Access Corridor
There are a variety of features you can add
Since we are making a corridor, choose “Area” under Map Notes – Area, then move your mouse over the map and follow the prompts to complete your shape of the corridor.
You will be prompted to help you edit
When you are finished, you will have the option to add some data about the shape you just created. Clikc close when you are finished.
Filling out shape data
Finished custom layer!
Now you have learned how to add custom layers to your map. Move to the next section to learn more about modifying the look of your map and preparing it for a presentation or sharing it with others.
Learn to modify the basemap
One of the best qualities of a good map is its readability. In other words, how easy is it to understand the data given all the other features on the map (i.e. adjacent cities, contrasting colors, etc). One option for improving the map, is changing the underlying basemap.
To change the basemap, click on the Basemap button located next to the “Add” button. You will see a number of choices that will allow you to adjust the basemap with the click of your mouse.
Experiment with different options to see which helps your data stand out the best
Experimenting with different basemaps (a)
Experimenting with different basemaps (b)
Experimenting with different basemaps (c)
The goal is to remove what you find distracting, without removing what might be helpful to the map’s reader. When you are finished, move to the next section to learn how to print and/or share your map.
Print and Share Map
For our final step, we are going to turn our map into one that we can share for presentations, reports, and/or other communication purposes. Click the Print button at the top-center of the screen to get started.
Click Print to turn our map into a shareable map
This will open a new window, with our data. Now just use File > Print as you would a normal page, but be sure to save it “as a PDF” instead of directly to your printer and you have a map.
A new window for printing your map
Right-click on the page and select Print…
Be sure to save your destination as PDF
This map is great, but it lacks some key elements (i.e. legend, north arrow, title, etc.). Read up on the Screenshots section from the Tips and Tricks page to learn how to add important features using screenshots. For example, to get my traffic layer’s legend to my map, I will have to take a screenshot from the Legend section, and superimpose it on my printed image.
Elements from the legend
Take a screenshot and add it to your Map PDF. Maybe Google Search for a North arrow as well!
Superimposed elements (plus North Arrow). This is explained in Tips and Tricks section
Now we need a way to share our map or save it so we can revisit and explore more of the data. To do this, we will need to sign up for an ESRI account. If you have not done so by now, click here to sign up and revisit the map when you are finished.
You will now notice two buttons appear at the center of the menu bar: Save and Share. These buttons will enable you to do just that!
The save button will add it to your free personal library
Fill out the map’s details and add tags
The share button will allow you to share it with the public (or just friends)
You will receive a link as well as information about embedding it into a website or application
Note: If you zoom out of Blytheville (or your site), you will notice you have also modeled the entire region!
You now have a modeled transportation network!For more information and resources, check out the next tab below. To continue working towards supportive regional transportation planning, choose from the following: