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Drive Time Rings

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Maptitude can calculate polygons containing all areas that can be reached within a specified driving time or distance. Earlier versions of Maptitude called these Network Bands but Maptitude 2016 calls them Drive-Time Rings. They are similar to MapPoint’s Drive Time Zones.

Drive Time Rings can be drawn around point(s) created by clicking on the map, or points in a selection set. They are created using the Drive-Time Rings Toolbox which is displayed by selecting Tools->Routing->Drive-Time Rings on the main menu. This toolbox looks like this:

Drive Time Rings Toolbox

Use the Based on Field setting to set whether the drive time ring size will be defined as travel time or driving distance. Use the Create box to set the number of required rings and their size increment. Note that they have to have the same spacing (5 minutes in this example).

Add points by pressing the ‘+’ button on the left, and then clicking on the map at each point location. Points can also be removed by pressing the ‘x’ button next to it.

After adding a point, the Create Drive Time Rings button (green circle) will be enabled:

Create Drive Time Rings (green circle) button enabled

Press this button to calculate the drive time rings. Here is an example:

Two drive time rings at 5 minute intervals, around a single point (click for larger view)

Notice that the outer ring includes ‘holes’ due to areas of slow roads surrounded by fast roads, and an ‘island’¬† around an exit on US-287.

Maptitude can calculate drive time rings around points in a selection set. Do this by pressing the multi-point button (third from left) on the toolbox:

Drive Time Rings toolbox set to use a selection set.

Use the Location Set box to set the layer (TexasCities in this example) and selection set within this layer (All Features in this example). Here is an example, zoomed to the Dallas-Fort Worth Metroplex and with three 2 minute rings:

Three drive time rings with a 2 minute interval, around multiple points in a selection set (click for larger view)

Maptitude can also create an overlay between the drive time rings and the demographics. Do this by pressing the Calculate Demographics button (green circle with document). This will create a new data view with the overlay data, and produce a report. Both present tables that list the aggregate demographics for each drive time ring. These can be for each interval, or totals with outer rings including the inner rings.

The drive time ring layer can be saved by pressing Save Drive-Time Rings Layer (green circle with disk) button.

Finally, the Drive-Time Rings Configuration dialog box is displayed by pressing the Options (green circle with gear) button:

Drive Time Rings Configuration dialog box

The Base on setting can be used to set the network to use. Typically this is Street, but you can limit the analysis to highways, or alternatively use the railroad network or river/stream network.

The Calculate Demographics and Create Report settings control the demographic overlays and reports, described above.

The Cumulative Bands setting controls whether the overlay demographics for outer rings include the inner rings.

The Separate Origins setting controls if adjacent  rings on different central points (origins) should be created as one shape or multiple separate shapes.

The Driving Speeds tab can be used to apply relative speed adjustments for each major road category:

Drive Time Rings road speed adjustments

This dialog box works in the same manner as the routing driving speeds.

Other Approaches

It is also possible to draw travel time contours using our Ultra Mileage product, and then use Maptitude to contour and plot the results. This approach requires more steps but produces smoother contours, and can be easily amended to produce any number of contours without requiring additional route calculations.

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