Case Study · 01 — OpenHazus

Interactive Map Viewer

Redesigning the geography selection step of a hazard analysis workflow, making geospatial boundary selection accessible to analysts across all technical backgrounds.

Role
UI/UX Designer · Team of 3
Client
FEMA
Tool
Figma
Activities
Wireframing, Prototyping, Presentations
OpenHazus Map Viewer
01 — Context

Context

The Interactive Map is one of the first steps in the workflow for generating the risk analysis report. Analysts use it to select the geographic boundary for their analysis, which defines which area will be included in the report. However, this selection process can be complex and not clearly explained.

I redesigned the interactive map experience to make geographic selection clearer and easier to confirm before users move forward with report generation.


02 — Problem

Problem

The existing platform was built on an ArcGIS-based application. It was robust for users with GIS expertise, but confusing for non-specialist users.

While the platform offered many advanced tools, not every user needed that level of complexity to define a geographic boundary and run an analysis. This created a steep learning curve for users who were unfamiliar with GIS tools.

The design challenge was to simplify the map-based selection workflow while still supporting the accuracy and flexibility required for hazard analysis.


03 — At a Glance

At a Glance

The redesigned workflow helps users move from an initial map view (landing) to a defined geographic selection with more clarity and flexibility.

Landing view Landing
State selected State selection
County selected County selection
Community selected Community selection
04 — Understanding the Problem

Understanding the Problem

To understand how users interact with the map, I reviewed existing business requirements and participated in client workshops with stakeholders who work closely with analysts.

I was able to identify three key user groups with different levels of GIS familiarity and analysis needs:

Primary
Hazard Analysts

They usually know the exact location they need, but have to go through extra steps to find it.

Secondary
Technical Specialists

They know how to use the interface, but get frustrated by how many steps it takes to do tasks they already know.

Secondary
Emergency Managers

They often handle a lot of data at once, so they need to be sure they have picked the right area before moving on.

User Needs and Goal

Select a study area quickly without needing to understand the underlying GIS data structure.

Clearly understand what is selected on the map at every point in the workflow.

Select and confirm the correct geographic area for analysis, then move on to the next step with confidence.

A complex map does not need a complex workflow. Because users were already looking at a dense map, the redesigned flow needed to reduce cognitive load by helping them focus on one action at a time.

Product Goals

  • Maintain map context — Allow users to make location decisions while keeping the selected geography visible and understandable.

  • Increase selection confidence — Make it clear what is selected, what is active, and whether the user is ready to move forward.

  • Simplify the path to selection — Reduce unnecessary hierarchy and support both guided exploration and direct search.


05 — Ideation

Ideation

To simplify the selection process, I explored multiple interaction models to understand how users could find and select jurisdictions while maintaining the map as the central element of the workflow.

Each concept had something worth carrying forward. The final design incorporates all three of these elements while addressing the visual feedback issues that none of them had fully resolved.

Key Design Decisions

Based on the concepts explored, I narrowed the final design direction to three ideas:

  1. Support direct lookup for known jurisdictions
  2. Let users switch boundary types without repeating the selection process
  3. Make selected areas easier to confirm.

Decision 1 - Support direct lookup for known jurisdictions

Decision 2 - Let users choose boundary types without a strict hierarchy

Decision 3 — Make selected areas easier to confirm

Together, these decisions shaped a map-centered workflow that enables users to find, select, and confirm geographic boundaries with less friction.


07 — Final Design

Final Design

The redesigned Interactive Map keeps the geography selection process on the map. Analysts can search for a location, select a state, switch between boundary types, and confirm their selection without leaving the map workflow.

Search entry point

For analysts who already know the the location name or jurisdiction ID, search provides a faster entry point than navigating the map manually.

Selected boundaries overview

As analysts make selections on the map, a summary panel on the right keeps track of what has been added to the study area.

The selections are organized by hierarchy, allowing users to see both the boundary level and the specific jurisdictions they selected at a glance.

Jurisdiction selector

Analysts can switch between State, County, Community, Census Tract, and Census Block boundaries without restarting the selection flow.

The selector tool reduced the need for a rigid drill-down method and gave analysts more direct control over the geographic level they wanted to analyze.

Colored Symbology

I created the palette using the U.S. Web Design System by combining unique colors with varying border thicknesses.

This helped reduce reliance on GIS-specific map patterns and made it easier to distinguish between active, selected, and available boundaries.

Outcomes & Reflection

The new Interactive Map Viewer gives analysts a clearer, more flexible way to define a study area before creating a risk analysis report.

  1. Reduced reliance on a rigid State → County → Community drill-down flow

  2. Improved visibility of selected jurisdictions through map feedback and a selected-boundaries panel

  3. Supported both users who wanted guided exploration and users who already knew the jurisdiction they needed

What was delivered

Geography selection
Delivered

State selection, boundary-type switching, selected-boundaries summary, and confirmation flow.

Search integration
Presented

The search feature was presented in a final review session. The project concluded before formal approval was given from the client.

Further exploration
Explored

Improved multi-state selection, advanced search, symbology refinements, and post-selection confirmation are left as future design opportunities.

What I learned

One thing I learned from this project is that having complex and extra controls doesn’t always guarantee a better user experience. A better experience happens when things are simple and give users just enough tools to get their job done with confidence.