Hello guys I will show how create a 3dsmax 3d road light model tutorial.
I have used following techniques shown below in this 3ds max tutorial.
[1]-Start 3dsmax and choose "Rectangle" with the following size as shown below
Apply the extrude modifier with the amount 12.5 now place the object like this 
[2]-Open the rendering palette and use the following setting now create the another rectangle like this 
[3]-Create chamfer cylinder and apply the FFD 3×3x3 now select the control point
Then drag the control point like this 
[4]-Create one more rectangle and place like me 
[5]-Create three tube with the good following size and now place like me 
[6]-This is time create single box with the good following size and now place the box like me 
[7]-Create the materials like me 
[8]-Set the skylight like this with the following parameter 
[14]-This is final image of the road light as shown below
Enjoy thanks for watching 