drivetime zone/firefighters/reactivity time

OlivierToubeau · ‎12-26-2018

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

XanderBakker · ‎12-26-2018

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.

OlivierToubeau · ‎01-02-2019

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 · ‎01-02-2019

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 · ‎01-02-2019

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 · ‎01-02-2019

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 · ‎01-02-2019

I'm not sure I understand the isochrone classes. The response time is 2minutes for professionnal and 7minutes for volunteers.

Thanks for you cooperation !

De : Xander Bakker <geonet@esri.com>

Envoyé : mercredi 2 janvier 2019 19:49

À : Olivier Toubeau <olivier.toubeau@zohe.be>

Objet : Re: - Re: drivetime zone/firefighters/reactivity time

<https://community.esri.com/?et=watches.email.thread> GeoNet

Re: drivetime zone/firefighters/reactivity time

reply from Xander Bakker <https://community.esri.com/people/xander_bakker?et=watches.email.thread> in ArcGIS Pro - View the full discussion <https://community.esri.com/message/822114-re-drivetime-zonefirefightersreactivity-time?commentID=822114&et=watches.email.thread#comment-822114>

OlivierToubeau · ‎01-03-2019

Hi all,

Now it works well, it was a problem related to the import of ressources and point barriers from point feature datasets. Adding it "manually" in Arcgis Pro put them correctly on the network.

It was in fact related to firestations situated on restricted use roads, so the drivetime was calculated beginning outside the barriers, and not crossing it…

It would be very useful to "see" the Arcgis Online World Streets Network dataset, to be able to see where the segments are actually.

Thank you for your help !

Oli

De : Olivier Toubeau <olivier.toubeau@zohe.be>

Envoyé : jeudi 3 janvier 2019 08:40

À : 'jive-772658057-6f84-2-hmci@mail.geonet.esri.com' <jive-772658057-6f84-2-hmci@mail.geonet.esri.com>

Objet : RE: Re: - Re: drivetime zone/firefighters/reactivity time