<s>
Transportation	B-Application
Economic	I-Application
Development	I-Application
Impact	I-Application
System	I-Application
(	O
TREDIS	B-Application
)	O
is	O
an	O
economic	O
analysis	O
system	O
sold	O
by	O
consulting	O
firm	O
Economic	O
Development	O
Research	O
Group	O
that	O
is	O
used	O
in	O
planning	O
major	O
transportation	O
investments	O
in	O
the	O
US	O
and	O
Canada	O
.	O
</s>
<s>
The	O
role	O
of	O
economic	O
impact	O
analysis	O
and	O
TREDIS	B-Application
in	O
the	O
transportation	O
planning	O
process	O
is	O
explained	O
in	O
guidebooks	O
of	O
the	O
US	O
Department	O
of	O
Transportation	O
and	O
American	O
Association	O
of	O
State	O
Highway	O
and	O
Transportation	O
Officials	O
.	O
</s>
<s>
TREDIS	B-Application
has	O
been	O
most	O
commonly	O
used	O
for	O
assessing	O
the	O
expected	O
economic	O
impacts	O
of	O
statewide	O
highway	O
programs	O
,	O
regional	O
multi-modal	O
plans	O
and	O
public	O
transport	O
investment	O
.	O
</s>
<s>
TREDIS	B-Application
has	O
a	O
series	O
of	O
modules	O
that	O
calculate	O
different	O
forms	O
of	O
impacts	O
and	O
benefits	O
.	O
</s>
