RHW (RealHighway) - Development and Support

[thornyjohny]

Many bad words have been said, trying to get an interchange to work. 
Regards,
Korot

Especially when it all starts to come together... and then it crashes in your face.

[metarvo]

Wow, could it possibly be a draggable diagonal MIS overpass? 

[Tarkus]

Wow, could it possibly be a draggable diagonal MIS overpass? 

Well, aside from the ones over other override-based RHW networks, they've always been draggable since they were added in Version 4.0.  It's the ones over override-based RHW networks (e.g. EMIS-over-RHW-4) that have been the problem, and that's largely because of the inability to stabilize them, due to how Individual Network RULs handle multiple same-network diagonal intersections next to one another.

-Alex

[ivo_su]

What is the  obstacle preventing the  dragable network to pass  over the puzzle pieces? This is only because RUL's  shortcomings or is simply impossible and is associated with the game EXE file ?

[Tarkus]

It's a shortcoming with how the RULs handles same-network DxD intersections.  With two different networks involved, the RUL flags (in RUL1 SENW format) is some rotation of 0x00030100,0x03010000.  As you can see, there's an "interlock" on the second byte flag--with the first network, the flag is 03, and on the second, the flag is 01.  Because there's two different networks involved in a RUL1 multi-network situation, the RULs can handle (and expect) this "interlock". 

But the Individual Network RULs (INRULs) cannot, as you're only dealing with one network.  You end up with 0x03??0100 . . . the question mark flag could be either an 01 or an 03 and really needs to be both to achieve the same result as the multi-network situation.  But there's no byte flag corresponding to a combination of 01 and 03, and thus, no way to resolve the intersection.  So the INRULs resolve to the next closest thing--try overriding this colossal mess:



It gets messier and messier and more unpredictable as you add more diagonal RHW stretches into the situation, making the prospect of an ERHW-6C diagonally crossing an RHW-6C insanely difficult.  The same goes for an AVE-6 diagonally crossing another AVE-6 . . . the problem also exists with the Road network (though it is compounded on the RHW side by the unshakeable "auto-connect").

Vince and I have both played around with the INRULs to see if we can force this mess into something easier . . . Vince has had some success using them to override a couple configurations of DxD mess--but it only in some limited situations and typically involves a little "clickaround" to snap things into place.  We've been discussing workarounds for awhile now.  Ideally, it'd be nice to figure out a non-workaround solution since this is the most "natural" way from a gameplay standpoint, but we may have no other option.

-Alex

[metarvo]

OK, now I see.  If worst comes to worst, though, there will at least be the DxD puzzle pieces, won't there?

[fgossage]

I accidently stumbled upon this today while looking for information about DDIs in real-life. It's a DDI / roundabout hybrid, it seems, that completely eliminates the need for traffic lights. Maybe an idea for a future interchange type at some point down the line, if there's enough interest?



What do you guys think?

[Tarkus]

Actually, what you're looking at there is your standard Dumbbell Interchange--basically, a diamond variant that uses roundabouts for the ramp junctions with the surface street.

-Alex

[fgossage]

That saves a lot of work! Thanks! 

[Haljackey]

Actually, what you're looking at there is your standard Dumbbell Interchange--basically, a diamond variant that uses roundabouts for the ramp junctions with the surface street.

-Alex

Interestingly enough, I've classified it as a Raindrop interchange.

I've created a guide how to make such a junction in the RHW Interchange Guide. If interested, you an view it here: http://sc4devotion.com/forums/index.php?topic=6843.msg320402#msg320402

[art128]

I seriously don't know is this last real intersection is funny, strange or scary..  Or maybe the three at once?   

[Rady]

What do you guys think?

I think the plans where to simply build a roundabout, but then the building worker seemingly suffered from a severe hangover .. 

[Tarkus]

I think the plans where to simply build a roundabout, but then the building worker seemingly suffered from a severe hangover .. 

Actually, it seems to have been engineered to prevent traffic from going the wrong way down the on/offramps.

-Alex

[kj3400]

I think the plans where to simply build a roundabout, but then the building worker seemingly suffered from a severe hangover .. 

Actually, it seems to have been engineered to prevent traffic from going the wrong way down the on/offramps.

-Alex

If they had to do that, it sounds like they have bigger problems.

[Ramona Brie]

Dumbbells are getting popular in AZ. Examples: Interstate 17 and Happy Valley Road, Phoenix (also includes access to a frontage road) and Loop 202 and Brown Road, McKellips Road in Mesa (very well-signed, and the signage looks quasi-British with the chevrons). The latter has the freeway at an odd (30°) angle with the roadway at both exits.

Conversely, parclo and cloverleaf loops are an endangered species. Deer Valley Road at I-17 is an example; one loop remains of the two in the A-4 parclo (EB to SB), but the rest is a diamond. I-19 and Ajo Way (SR 86) is also an A-4 parclo, though it is complete.

AZ has quite a few SPUIs, too.

[pimmapman]

That's a new puzzle piece that would be nice in RHW. A flexraindrop piece.

[Wiimeiser]

You could just use a Roundabout to Ave-2 piece that doesn't allow crossing and allow MIS to join roundabouts.

[thornyjohny]

What is the WRHW for?

[MandelSoft]

^^ It is used as a filler piece between two RHW-3 transistions.

[Wiimeiser]

Might also be used for TuLEPs later on.