---
title: "Urban Structures and Features | Tutorials"
slug: "urban-structures-and-features"
description: "Read about the urban structures and features available for representing in your urban system. "
tags: ["1D urban modelling"]
updated: 2022-09-23T15:26:42Z
published: 2022-09-23T15:26:42Z
canonical: "help.floodmodeller.com/urban-structures-and-features"
stale: true
---

> ## Documentation Index
> Fetch the complete documentation index at: https://help.floodmodeller.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Urban Structures and Features

We have seen urban networks consist of [Urban Junction and Outfall Nodes](/v1/docs/urban-junction-and-outfall-nodes), alongside [Urban Conduits](/v1/docs/urban-conduits) to represent the underlying system.

We will also see that **Rain Gage** and **Subcatchment** nodes can be used to specify the [Urban Inflow](/v1/docs/1d-urban-flow) entering the system.

Several other node and link types are available for representing features within your urban system.

**Flow-Divider** nodes are required as an equivalent to a Junction node to divide flow between two outflow pipes if using **Kinematic Wave** routing.

The method to **add** an urban Divider node is identical to that of the [Urban Junction and Outfall Nodes](/v1/docs/urban-junction-and-outfall-nodes), aside from selecting the **Divider** icon on the **1D Urban Build** tab. The methods to **move**, **delete** and **view** urban Flow-Divider nodes also are identical to those for the Junction nodes.

Exactly two outflow links must be connected from a **Divider** node. Details of diverted flow are specified in the node properties when [Working with divider nodes](/v1/docs/working-with-flow-divider-nodes). If using Dynamic Wave routing, any Flow-Divider nodes will be treated as Junction nodes.

In additional to editing urban Divider nodes individually, the urban Multi Edit & View tool is designed to easily [Visualise urban networks](/v1/docs/how-to-visualise-urban-networks-using-the-multi-edit-view-tool) and [Edit multiple components of urban networks](/v1/docs/edit-urban-networks-using-the-multi-edit-view-tool).

The final node type is the **Storage** node, used to represent storage units within your urban system.

The method to **add** an urban **Storage** node is identical to that of the [Urban Junction and Outfall Nodes](/v1/docs/urban-junction-and-outfall-nodes), aside from selecting the **Storage** icon on the **1D Urban Build** tab.The methods to **move**, **delete** and **view** urban Storage nodes also are identical to those for the Junction nodes.

Evaporation, seepage and a storage curve can all be defined when [Working with storage nodes](/v1/docs/working-with-storage-nodes).

In additional to editing urban Storage nodes individually, the urban Multi Edit & View tool is designed to easily [Visualise urban networks](/v1/docs/how-to-visualise-urban-networks-using-the-multi-edit-view-tool) and [Edit multiple components of urban networks](/v1/docs/edit-urban-networks-using-the-multi-edit-view-tool).

**Pump** and flow-regulator (**Orifice**, **Weir** and **Outlet**) links can be used to connect the nodes in an urban network. They allow the flow to be conveyed between their inlet and outlet nodes in alternative ways to the Conduit link.

A **Pump** is a link that lifts water between nodes.

**Orifice** and **Weir** links represent these features within an urban system, and convey flow using the orifice and weir equations respectively

An **Outlet** link is used to specify flow not represented by a pump, orifice or weir.

The method to **add** an urban **Pump** or Flow-Regulator link is identical to that of the [Urban Conduit links](/v1/docs/urban-conduits), aside from selecting the relevant link-type from the drop-down provided in the **Add Link(s)** pop-up tool. The methods to **delete** and **move/edit vertices** is the same for all link-types, i.e. as with the Conduit link.

In **Kinematic Wave** routing, these link types are only allowed as the outflow link from an **Urban Storage Node**.

We refer the user to the [Urban Pumps and Flow-Regulators](/v1/docs/the-urban-pump-and-flow-regulator-links) section of the technical reference for further details on each link type, including the equations used.

In additional to editing these urban link types individually, the urban Multi Edit & View tool is designed to easily [Visualise urban networks](/v1/docs/how-to-visualise-urban-networks-using-the-multi-edit-view-tool) and [Edit multiple components of urban networks](/v1/docs/edit-urban-networks-using-the-multi-edit-view-tool).