<s>
On-street	B-Application
parking	I-Application
sensing	I-Application
refers	O
to	O
technologies	O
used	O
to	O
obtain	O
and	O
present	O
real-time	O
parking	O
availability	O
information	O
.	O
</s>
<s>
Google	B-Application
Maps	I-Application
announced	O
this	O
functionality	O
in	O
2017	O
based	O
on	O
historical	O
data	O
gathered	O
from	O
phones	O
with	O
location	O
services	O
turned	O
on	O
.	O
</s>
<s>
Advances	O
in	O
computer	B-Application
vision	I-Application
make	O
possible	O
automated	O
parking	O
occupancy	O
estimates	O
from	O
on-street	O
cameras	O
.	O
</s>
<s>
Ultrasonic	B-Application
and	O
electromagnetic	O
rangefinders	B-Algorithm
mounted	O
on	O
lamp	O
posts	O
and	O
other	O
street	O
infrastructure	O
can	O
detect	O
parking	O
events	O
.	O
</s>
<s>
Battery	O
powered	O
sensing	O
unit	O
installed	O
flush	O
or	O
surface	O
mount	O
in	O
parking	O
spaces	O
using	O
magnetic	O
,	O
infrared	O
and/or	O
ultrasound	B-Application
.	O
</s>
