P
Parking Enforcement
System @ Gatech
Lefties ft. Dr.Corso
All rights reserved by Lefties: Courtney, Jaroslav, Jayoung, Leland, Quan
All rights reserved by Lefties: Courtney, Jaroslav, Jayoung, Leland, Quan
All rights reserved by Lefties: Courtney, Jaroslav, Jayoung, Leland, Quan
All rights reserved by Lefties: Courtney, Jaroslav, Jayoung, Leland, Quan
All rights reserved by Lefties: Courtney, Jaroslav, Jayoung, Leland, Quan
All rights reserved by Lefties: Courtney, Jaroslav, Jayoung, Leland, Quan
All rights reserved by Lefties: Courtney, Jaroslav, Jayoung, Leland, Quan
All rights reserved by Lefties: Courtney, Jaroslav, Jayoung, Leland, Quan
Parking Enforcement system: Bird Eye’s View
GATECH Campus
Divided into E & W
Parking office
Academic Area
: only from 8 am to 6 pm
Dispatcher
:check info. for PCO
Residential Area
: 24 hours
Shift change/report
ETW station
:sync-up data stored
during the shift
Towing Company
Dispatcher calls an
external towing on
the demand of:
1) PCOs
2) Call-in
(reserved parking)
All rights reserved by Lefties: Courtney, Jaroslav, Jayoung, Leland, Quan
8 PCOs at one shift
(8AM - 3 PM)
(3 PM - 11 PM)
(11 PM - 8 AM)
Boot Stored
Individual PCO’s task
PCO equipment
QuickTi me™ and a
T IFF (Uncom pressed) decom pressor
are needed to see t his pict ure.
ETW (Main)
Phone
QuickTime™ and a
TIFF (U ncompressed) decompressor
are needed to see t his picture.
Log
Quic kTime™ and a
TIFF (Unc ompres sed) dec ompres sor
are needed to see this pic ture.
Quick Time™a nd a
TIFF ( Unco mpre ssed ) dec ompr esso r
ar e nee ded to see this pictur e.
Camera
Flash light
PCO job tasks
A. Check cars in violation
1. warning
2. Issuing a ticket
1) only ticket
2) booting
(three tickets or more / fine $100)
3) impound
(handicapped/ reserved)
All rights reserved by Lefties: Courtney, Jaroslav, Jayoung, Leland, Quan
B. Parking facility maintenance
(Gate, Vehicle etc.)
C. Sign installation
(game day, art events etc.)
Problems with the current system
Problems in the global system
8 officers Vs. 800 cars + unregistered
Miss a lot of illegally parked cars
Simple & repetitive task
Bored + low workload
No specific job requirement
Low arousal (motivation)
Delay in information update
Inaccurate ticketing
Poor communication between PCOs
“Lots” of overlap (checking areas)
Too many devices to carry
Low efficiency
All rights reserved by Lefties: Courtney, Jaroslav, Jayoung, Leland, Quan
Problems with the current system
Problems in the local system
ETW
Permit
Too big & Heavy
Physical fatigue
Small display with lots of information
Poor visual affordance
Unnecessary buttons (e.g., +, %)
Low efficiency
Buttons invisible at night
No visibility
Too many hidden shortcuts
Requires recall than recognition
Lack of feedback for input
Kludgy input interaction
Wearing Gloves & Pressing buttons
Low efficiency & accuracy of use
Invisible at night
No visibility
Poor prioritization in information
Poor visual affordance
Low contrast
Poor visibility
All rights reserved by Lefties: Courtney, Jaroslav, Jayoung, Leland, Quan
Guss found out this car needs to be booted
All rights reserved by Lefties: Courtney, Jaroslav, Jayoung, Leland, Quan
Guss went to get his boot…
All rights reserved by Lefties: Courtney, Jaroslav, Jayoung, Leland, Quan
All rights reserved by Lefties: Courtney, Jaroslav, Jayoung, Leland, Quan
All rights reserved by Lefties: Courtney, Jaroslav, Jayoung, Leland, Quan
All rights reserved by Lefties: Courtney, Jaroslav, Jayoung, Leland, Quan
All rights reserved by Lefties: Courtney, Jaroslav, Jayoung, Leland, Quan
All rights reserved by Lefties: Courtney, Jaroslav, Jayoung, Leland, Quan
Problems to be solved
Low Accuracy
Low Efficiency
Low Job Gratification
too many cars to check
too many devices to carry
simple & repetitive tasks
poor communication
devices too large
no job constraints
memorization required
pressing buttons with gloves
low workload
small display & buttons
ETW updated once per shift
no error feedback
“lots” of overlap
poor visibility at night
What needs to be changed?
Faster and more accurate mechanism to check cars
Consolidating devices
Alternative modality compatibility of information input for the ETW
Ways to raise arousal (give more tasks or motivation)
Better visual & physical affordances in the system
All rights reserved by Lefties: Courtney, Jaroslav, Jayoung, Leland, Quan
Parking system under renovation
All rights reserved by Lefties: Courtney, Jaroslav, Jayoung, Leland, Quan
10 years later…
All rights reserved by Lefties: Courtney, Jaroslav, Jayoung, Leland, Quan
Neo_TSRB
I am now a professor
All rights reserved by Lefties: Courtney, Jaroslav, Jayoung, Leland, Quan
new parking permit
All rights reserved by Lefties: Courtney, Jaroslav, Jayoung, Leland, Quan
New Parking Permit
The most frequently
used data by PCO
The actual number
typed in the ETW
Less important information
in gray color (less salient)
RFID
All rights reserved by Lefties: Courtney, Jaroslav, Jayoung, Leland, Quan
Check cars with RFID
All rights reserved by Lefties: Courtney, Jaroslav, Jayoung, Leland, Quan
Remember this?
All rights reserved by Lefties: Courtney, Jaroslav, Jayoung, Leland, Quan
Introducing the ETW: the next generation
camera
printer
speaker
mic
main control
including,
1) browsing buttons
2) three modes
All rights reserved by Lefties: Courtney, Jaroslav, Jayoung, Leland, Quan
flash light
flash light button
ETW: the next generation
voice
recognition
All rights reserved by Lefties: Courtney, Jaroslav, Jayoung, Leland, Quan
manual
input
In summary…
Local Changes
Global Impact
Adopting RFID
Faster and more accurate check of parking violation
(in Parking Permit)
Increase the workload by speeding up the process
ETW: the next generation
All-in-one device
Also serves as phone, flashlight, camera
Voice recognition system
More accurate and faster for the input data
Multi-modal feedback
(Verbal input = auditory feedback) + visual feedback
Reduce the physical size
Easier to carry for longer period of time
Enlarge the display screen
More accuracy & better visual feedback
Reduced unnecessary buttons
minimalistic design + increase efficiency
Wireless network
real-time information updates
All rights reserved by Lefties: Courtney, Jaroslav, Jayoung, Leland, Quan
The End
All rights reserved by Lefties: Courtney, Jaroslav, Jayoung, Leland, Quan