nav[aria-label="Primary Navigation"] { padding: 0; & ul { list-style: none; width: 100%; display: flex; flex-direction: row; justify-content: start; align-items: start; gap: 30px; padding: 0; & li { margin: 0; } & ul li { list-style: none; } } }

drivetime zone/firefighters/reactivity time

OlivierToubeau

Hi all,

I want to create drivetime zones for our firefighters, starting from different firestations. Some of them are professionnal, so that the trucks are leaving very soon after the call. Some other are volunteer, so the trucks leave later (the time the colleagues come back from their home).

I would like to create split drivetime zones between professionnal and volunteer firestations. So I want to add a "start delay", that would be maybe 1min30 in a professional and 6min in a volunteer firestation. The best way would be to add this start delay as an attribute of the facilities, and to add this start delay at the drive time.

Is it possible ?

I'm using Arcgis Pro, with the benefits of Arcgis Online network dataset.

Thanks in advance !

Olivier

Trouver plus de publications taguées avec

Accepted answers

All comments

XanderBakker

Since you will have to define isochrone classes for both volunteers and professionals, you can do this in such a way that you can combine both results since they will have the same classes. What response time classes are you planning to obtain in the result?

OlivierToubeau

No I can't because I need to obtain the limits between the different areas, that will be a line isochrone and isodistance.

If I do like you advise, I don't have this isochrone and distance.

The added cost point barriers work well for an itinerary analysis, but aren't taken in consideration for service area analysis. The resulting polygon has always the same extent, despite the fact that point barriers are placed around the fire station...

Any idea ?

XanderBakker

I would advise to filter (split) the layer anyway into volunteers and professionals, so you can correctly specify the drive time classes for each type and merge the result if you need to have a combined result.

OlivierToubeau

Thanks Xander,

I can't split the layer, because I want to do split reaction time polygons, to display each service area, professionnal versus volunteers.

I'm thinking of adding added cost point barriers around each firestation, which will determine the "reaction" time. In fact, crossing these points will add impedance (minutes), simulating the reaction time.

I understand all the concepts, but as I make the service area analysis, the barriers are not taken in consideration. Someone could help me with that please ?

Have you got a fine tutorial about adding added cost (minutes) point barriers ?

XanderBakker

If you are going to use ArcGIS Online to generate the reaction time polygons, you would probably have to split the layer (use a filter) and run the calculation for the professional and the volunteers separately. For professionals the 5 minute reaction time polygon would correspond to 3.5 minutes drive time and for volunteers the 10 minute response time would correspond to 4 minutes drive time. The description in the legend should be change so the user will understand the polygons.

Rejoindre la conversation

Les membres connectés peuvent publier, suivre les mises à jour, et plus encore. Nouveau ici ? Inscrivez-vous gratuitement.

Liens rapides

Community Help
Find useful guides, FAQs, and documents to help you navigate and make the most of Esri Community.