<s>
The	O
Open	B-Language
Source	I-Language
Routing	I-Language
Machine	I-Language
or	O
OSRM	B-Language
is	O
a	O
C++	B-Language
implementation	O
of	O
a	O
high-performance	O
routing	B-Protocol
engine	O
for	O
shortest	O
paths	O
in	O
road	O
networks	O
.	O
</s>
<s>
Licensed	O
under	O
the	O
permissive	O
2-clause	O
BSD	B-Operating_System
license	I-Operating_System
,	O
OSRM	B-Language
is	O
a	O
free	O
network	O
service	O
.	O
</s>
<s>
OSRM	B-Language
supports	O
Linux	B-Application
,	O
FreeBSD	B-Operating_System
,	O
Windows	B-Application
,	O
and	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
platform	O
.	O
</s>
<s>
It	O
combines	O
sophisticated	O
routing	B-Protocol
algorithms	I-Protocol
with	O
the	O
open	O
and	O
free	O
road	O
network	O
data	O
of	O
the	O
OpenStreetMap	O
(	O
OSM	O
)	O
project	O
.	O
</s>
<s>
OSRM	B-Language
uses	O
an	O
implementation	O
of	O
contraction	B-Protocol
hierarchies	I-Protocol
and	O
is	O
able	O
to	O
compute	O
and	O
output	O
a	O
shortest	O
path	O
between	O
any	O
origin	O
and	O
destination	O
within	O
a	O
few	O
milliseconds	O
,	O
whereby	O
the	O
pure	O
route	O
computation	O
takes	O
much	O
less	O
time	O
.	O
</s>
<s>
The	O
screen	O
shot	O
image	O
shown	O
is	O
since	O
September	O
2015	O
out	O
of	O
date	O
with	O
loss	O
of	O
attendant	O
routing	B-Protocol
service	O
features	O
.	O
</s>
<s>
OSRM	B-Language
was	O
part	O
of	O
the	O
2011	O
Google	B-Application
Summer	I-Application
of	I-Application
Code	I-Application
class	O
.	O
</s>
