Roads Building in AE

[mkrbu50]

Hi,
I was playing a campaign in version 1.03g and at about turn 120 I was able to see road building.
I restarted with version 1.03k at turn 20 and I can't see the road icon.
Is there a trigger or technology that enables them to the player at later stages or what?
Is there any reference that explains road building mechanics?

I'm playing as Macedon.

Thanks,

[Eladryel]

As I know, you can build roads only in big citys (6 slots), but the lesser ones are buildable from turn 1.

[mkrbu50]

Is it that easy? I'll try it as soon as the mod is done updating.

Thanks,