View source for How to configure the Travel Distance Overlay for Pedestrians

Below an example with the [[Travel_Distance_Overlay|Travel distance overlay]]  based on a school and the travel distance for pedestrian traffic.
We want to visualise which houses (and other buildings), within a range of 20m to a connecting sidewalk, are within a walking distance of 500m from a certain school.

{{howto|title=
|Select the [[Current Situation]] tab
|Hover over Overlays, and under Grid Calculation, select to add a Travel Distance Overlay. 
|Go to the Attributes tab of the Travel Distance Overlay. The [[Road distance (Travel Distance Overlay)|ROAD_DISTANCE]] is set by default on 20m and the [[Max travel distance (Travel Distance Overlay)|MAX_TRAVEL_DISTANCE]] on 500. 
|Set the [[Route_cars_(Travel_Distance_Overlay)|Route cars]] on 0 to not include roads for car traffic. Set the [[Route_pedestrians_(Travel_Distance_Overlay)|Route pedestrians]] on 1 to include roads for pedestrian traffic.
|On the Keys tab of the overlay, on the right side of the editor, the defaults [[Overlay_Key|keys]] [[Destination_area_(Travel_Distance_Overlay)|DESTINATION_AREA]] and [[Blocked_(Travel_Distance_Overlay)|BLOCKED]] are already filled in. 
|You can change a key to another attribute, such as 'WALKING_DESTINATION', by selecting it from the drop-down menu for each key. For this how to this is not necessary.
|Draw an area over the school of which you want to calculate the travel distance from. 
|[[How_to_add_an_Attribute|Add]] the corresponding key as an attribute to the area. In this example add the attribute [[Destination area (Travel Distance Overlay)|DESTINATION_AREA]] with a value of 1 to the area. 
|Select the general tab and optionally [[Grid_Overlay#Grid_size|adjust the grid]] as desired; 1 meter will give a nice resolution in our example.
|[[Grid_Overlay#Grid_recalculation|Update]] the Travel Distance Overlay. 
}}

<gallery>
File:current_situation_travel_distance_overlay.png|Adding a new [[Travel Distance Overlay]].
File:Travel_distance_destination_area_key.png|Configured [[Destination area (Travel Distance Overlay)|DESTINATION_AREA]] key for the Travel Distance Overlay.
File:Travel_distance_step.PNG|Configured attributes for the Travel Distance Overlay.
File:Travel_distance_destination_area_attribute.png|Destination Area drawn and configured with the ''WALKING_DESTINATION'' attribute.
</gallery>

==Pedestrian Traffic==
It might be necessary to define which Functions allow pedestrians to traverse. This is done by setting the Function Value [[Pedestrians per hour (Function Value)|NUM_PEDESTRIANS]] to a value larger than 0.
{{:How to configure Functions for Pedestrian traffic}}

{{article end
|notes=*You can also set the [[Pedestrians per hour (Function Value)|NUM_PEDESTRIANS]] for specific Buildings.
*You should also set the [[Pedestrians per hour (Function Value)|NUM_PEDESTRIANS]] for Functions of the Bridge and Intersection [[category]].
|seealso=
* [[Travel_Distance_Overlay|Travel distance overlay]]
|howtos=
*[[How to configure Functions for pedestrian traffic]]
}}

[[Category:How-to's]]