All work
Parking Assistance — automotive HMI and heads-up display
Car HMI & Heads-up Display

Parking Assistance

Overview

An automotive interface to ensure drivers find parking spots easier, faster, and more efficiently.

My Role

UX Research, UX Design, Visual Design

Duration

July – November, 2022

Final HMI Screens

Find nearby parking

This feature helps users find nearby parking based on their real-time location, preferences, and the logistics of each parking option.

Find nearby parking

Parking at your destination

Prior to the trip, users can find parking space near the destination. The application can filter out the options that do not match their preferences.

Parking at your destination

Final Heads-up Display Screens

Street parking

Both the HMI screen and heads-up display show details about street parking, including exact available spots, distance, destination, price, the location of meters, and more.

Street parking

Garage parking

The heads-up display shows details inside the structure, including available spots' directions, distance, destination, price, the location of the destination, and more.

Garage parking

Parking lot parking

Both the HMI screen and heads-up display provide drivers information about parking space availability and parking assistance.

Parking lot parking

Problem

When driving fails to save time

Cars are an integral part of many people's lives, providing freedom and mobility. In fact, 91.6% of American households own at least one car. However, the popularity of personal vehicles can lead to difficulties in finding parking spots, which can result in wasted time and increased anxiety.

⏱️
17hr
Time-consuming
Drivers spend an average of 17 hours a year searching for parking spots.
💰
$20B
Money-wasting
Searching for spots costs Americans more than $20 billion a year, or $97 per driver.
📆
42%
Missing an appointment
Nearly 42% of U.S. respondents said they missed an appointment.

Research Findings

Uncovering the Secrets of Parking Puzzles

I conducted a competitive analysis of current parking apps, along with interviews to understand users' personal experiences with parking and their needs.

Need guidance to a specific spot

None of the platforms we researched provides detailed information about exact parking spots — only metered parking can be located. Yet interviewees reflected that finding an available spot could take a very long time.

People have their preferences

Every driver has their own preferences for parking — where to park, the rate, whether it has certain amenities, and more.

Need more details for street parking

Almost no platform provides information about street sweeping times, payment options, parking durations, and more. Users would love an efficient way to access parking-policy details, especially first-time visitors.

Parking research — HMI 1
Parking research — HMI 2

Journey Map

Then, Unraveling Their Parking Journey

We developed a journey map, recording specific actions across the different phases of drivers' parking journey and listing out the pain points and opportunities we could address in our design.

Parking journey map

User Flow

Adding Features at Every Turn

Infusing the brainstormed potential solutions into the user journey, we developed a more holistic view of the application in detailed steps, and re-evaluated the features and functions to see if they addressed the pain points we discovered above.

User flow
Design Concept
A system of HMI application and heads-up display that helps drivers park more efficiently and easily, through:
01

Displaying parking information.

02

Providing customization options.

03

Helping drivers find an exact available spot.

Selected High-Fidelity Prototypes

Make it personalized, specific, compact

After consolidating the idea, I turned the wireframes into high-fidelity prototypes for user testing.

Custom filters
Custom filters

Custom filters for your preferences

  • Users can set different filters based on their preferences.
  • Filters help the system recommend a solution that satisfies users better.

Crafting compact info cards for you

  • Automatically shows the three most recommended parking locations to avoid information overflow on the map.
  • Displays the most useful information for each parking location.
  • Differentiates the kinds of parking location by icons.
Compact info cards
Finding parking anywhere
Finding parking anywhere

Finding parking places anywhere

  • Users can find parking anywhere.
  • To find parking where they currently are, they can use "Find Parking" to get recommendations.
  • To know where they can park before the trip, they search the destination's name.
  • And if they just want navigation, that works too.

It's all about the specifics

  • Shows the exact locations or directions of available spots in advance.
  • Displays meters and destinations on the screen.
  • Uses various colors to represent different kinds of information.
Garage AR guidance
Parking lot specifics

User Testing

Always About Our Users

After finishing the high-fidelity mockups and prototyping, I conducted four user testing sessions to examine effectiveness and usability — the goal being to see whether our designs solved users' needs.

😕

90% of users were confused about "Bubble View" and "List View"

Users appreciated the dual parking-view options, but 90% found them confusing and less useful.

🔍

The quick-navigation button is too small to see

Users noted the small, less accessible Start Navigation button in the parking options, affecting usability and readability.

🤯

Too much information in the heads-up display

Parking info on the heads-up display and AR is useful, but users complained about information overload and color confusion.

🗺️

More information about parking and available spots on the map

Users suggested enhancing the HMI screen to display parking information upon arrival, requesting additional details. For street parking, they'd like available spots and the destination marked on the map, in addition to the current rate and time period.

Next Step

If I had more time, I would…

01

Research and user testing

As a UX designer, I strive to build products that are usable and accessible for everyone. This time, though, we didn't have enough time to test with a large number of users, including people with disabilities.

As a next step, I'd spend more time on research and user testing to better understand how different people interact with it — and the psychology behind those interactions.

02

Working with engineers to improve feasibility

Some of our current design is based on assumptions — for example, that the system stores each city's parking information. We haven't yet analyzed the feasibility of this in depth.

I'd want to work with engineers and manufacturers to hear their advice and improve the design's feasibility in the real world.