How to Calculate Drive-Time Polygons

In this guide we will show how to use drive-time analysis in Azimap.

Time to complete: 5 mins.

Contents

1.    Open an existing map

2.    Calculating drive time

2.1  Using the drive time tool

2.2  SINGLE tab

2.3  INTERVALS tab

2.4  GROUPS tab

1.    Open an existing map

Click on the row of your chosen map to open it.

2.    Calculating drive time

2.1.  Using the drive time tool

Select the ROUTING AND DRIVE TIME menu from the toolbar.

Select NETWORK ANALYSIS (CAR) from the menu.

This will open the drive time side panel.

The drive time panel consists of three tabs:

• Single drive time – analyses where you could get to within a given drive time from a given location.
• Intervals – drive time analysis divided up by regular time bands.
• Groups – select multiple point features on a map and get drive time polygons for each.

2.2.  SINGLE tab

Use the SEARCH box to enter your desired drive time in minutes.

Choose drive time polygon fill colour and stroke colour.

Reset form to defaults.

Select your ‘from’ location (use button to click map to choose starting point).

2.3.  Example

I selected the Belfast  in Northern Ireland as my centre point and got the resulting drive time polygon showing 15 mins drive time in all directions.

2.4.  INTERVALS tab

The INTERVALS panel allows for the analysis of regular drive time bands from a given location.  E.g. in this example, we’ll be raising a polygon that will show a 30 minute drive time from Belfast, in 15 minute bands.

There are two input boxes:

• Time duration – max time of analysis
• Time interval – band size of drive time polygon 

Reset form to defaults

Generate drive time ‘from’ location (select button and then click map to generate drive time polygons).

Again, I selected the Belfast in Northern Ireland as my ‘from’ location and got the resulting drive time polygons showing 30 mins drive time in all directions in 5 minute bands.

2.5.  GROUPS tab

The groups panel allows for the analysis of multiple drive times calculated from selected points on a map layer (single or multi).

Search box for drive time in minutes.

Choose drive time polygon fill colour and stroke colour.

Reset form to defaults.

Select multiple point features on a map using lasso tool. This analysis will only be performed on any point that falls within the polygon that you draw with this lasso tool.

 

?The points marked on the map will appear as a blue square while they are being collected. 

The selected features should look as below.

This generates 15-minute drive times for each of the selected points. 

That’s all for our drive time analysis.

Thanks for reading the guide and we hope you plan your future routes with Azimap.

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