2a4d8c4c_Orcz_com__The_Video_Games_Wiki__Command
[Key] O [Command] 
Circle Road Tool
S t r a i g h t R o a d T o o l
C i r c l e R o a d T o o l
C u r v y R o a d T o o l
R e c t a n g l e R o a d T o o l
A r c R o a d T o o l
U p g r a d e R o a d T o o l
C o n s t r a i n R o a d T y p e
T o g g l e G r i d O n / O f f
SimCity: Keyboard Controls - Orcz.com, The Video Games Wiki
Command