View source for Tutorial:Making Parclo A-2 Interchanges with the RHW

The parclo A-2 is a interchange type consisting of 4 ramps, and is ideal to use in both rural and suburban areas.  Loop ramps are used to connect the arterial road to the highway, and long, straight ramps connect the highway to the arterial road, allowing for a smooth deceleration in speed off the highway instead of breaking to use the loop ramps.
-The parclo A-2 is designed to be easily upgraded to a Parclo A-4, which I will explain in a future guide.

Since I used the RHW-4 for all the diamond interchange guides, I'll do something different and use the RHW-6C for this guide.  

==Getting the basic stuff out of the way...==

Place your starter piece...

{{img|http://i366.photobucket.com/albums/oo101/haljackey3/TerraInternationalAirport-Dec280112.jpg}}

Drag the RHW using the RHW tool...

{{img|http://i366.photobucket.com/albums/oo101/haljackey3/TerraInternationalAirport-Jan602123.jpg}}

(Optional) Delete the starter pieces to create a RHW without any overrides.

{{img|http://i366.photobucket.com/albums/oo101/haljackey3/TerraInternationalAirport-Jan100212.jpg}}

And drag the stable network over it.

{{img|http://i366.photobucket.com/albums/oo101/haljackey3/TheThru-way-Nov20011233363092800x60.jpg}}

That's what a RHW-6C looks like.  Neat eh?



==Parclo A-2 Interchange==

First thing's first, construct your overpass:

{{img|http://i366.photobucket.com/albums/oo101/haljackey3/TerraInternationalAirport-Jan300212.jpg}}

Next, place your RHW-6C type "B" ramps like so:

{{img|http://i366.photobucket.com/albums/oo101/haljackey3/TerraInternationalAirport-Feb100212.jpg}}

And then extend the MIS ramps to loop around and intersect with the road:

{{img|http://i366.photobucket.com/albums/oo101/haljackey3/TerraInternationalAirport-Apr802123.jpg}}

The next thing that needs to be done is to draw RHW-2s next to the loop ramps you made.

{{img|http://i366.photobucket.com/albums/oo101/haljackey3/TerraInternationalAirport-Jun120212.jpg}}

Now place some more RHW-6C type "B" ramps to connect with the RHW-2s, changing them into the MIS.

{{img|http://i366.photobucket.com/albums/oo101/haljackey3/TerraInternationalAirport-Jul102123.jpg}}

...And there you go!  A parclo A-2 interchange!

==Other combinations==

Unlike diamonds, the parclo A-2 interchanges follow a standard design and thus are not as diverse.  The concept will remain the same for all variations.  However, I will show you some ways to diversify them, by changing the way they intersect with the road.

The easiest thing you can do is replace the last few tiles of the offramps with one-way roads before the intersection.  This will create an extra lane so exiting traffic now has right and left turning lanes.

{{img|http://i366.photobucket.com/albums/oo101/haljackey3/TerraInternationalAirport-Jul220212.jpg}}

You can also use the RHW-2/MIS splitter piece to make the ramps join together.

{{img|http://i366.photobucket.com/albums/oo101/haljackey3/TerraInternationalAirport-Sep202123.jpg}}

And you can also create turning lanes and traffic lights by replacing the last tile of the RHW-2 with a road.

{{img|http://i366.photobucket.com/albums/oo101/haljackey3/TerraInternationalAirport-Sep120212.jpg}}

==Other==

Other tutorials in this series include:
*[[Tutorial:Making_Diamond_Interchanges_with_the_RHW|Standard Diamond Interchanges]]
*[[Tutorial:Making_Diamond_Interchanges_with_the_Elevated_RHW|Elevated Diamonds]]
*[[Tutorial:Making_Parclo_Interchanges_with the RHW|Parclo Interchanges Index]]
*...

{{Cat|RHW|NAM|Interchanges|Interchanges/Diamond|}}