Get your lame put downs in before resurfacing commences. 

On 11/30/2022 at 6:38 AM, Srikcir said:

I agree with your conclusion theoretically.

But how did you confirm this is the case? See the drawings your self or another news source?

 

Furthermore, a road drain placed within the traffic way ( ie., road center) means the road surface must be inverted towards the center of the road. A drain is typically placed at the roadway edge by a crown in the roadway where water needs to be directed away from the road surface that otherwise may create ponding on the road. 

They build these huge concrete rectangular drains under the road first, then they place the drain grates in the road above these drains. That's why the drain covers are on the main part of the road, even on top of rises or hills.

Beats me too. ????

46 minutes ago, carlyai said:

They build these huge concrete rectangular drains under the road first, then they place the drain grates in the road above these drains. That's why the drain covers are on the main part of the road, even on top of rises or hills.

Beats me too. ????

"tops of rises or hills" as I said earlier- Thai water can run uphill. 

Netizens don't get it. This is a fortuneteller drain. It tells what the level of the road will be in the near future!