The Network Addon Mod, or NAM, is a modification for SimCity 4 Deluxe (or SimCity 4 with the Rush Hour Expansion pack), which adds a myriad of new transport network items, ranging from ground light rail, to fractional-angle roads, to roundabouts, and much more. It also includes bugfixes to Maxis items and a highly optimized set of traffic simulator plugins, improving pathfinding accuracy and performance.

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You heard that right. Ploppable interchanges for the Network Addon Mod's RealHighway (RHW) system, similar to those for the game's default (Maxis) Highway system, are indeed in development, and will be on the way to a yet-to-be-determined NAM release in the near future. This may seem too good to be true, given the team's long-standing answer to the requests for such a feature, as taken from the old "Frequently Asked Questions" section on the long-running RHW Development and Support thread at SimCity 4 Devotion:

rhw old faq17

From the release of the initial details of the RHW's "Modular Interchange System", or MIS, back in 2006, the mod's developers have been adamant about adhering to a strictly modular approach to interchange construction, with the intent of the RHW providing a much cleaner and readily expandable solution to make custom interchanges, when compared to the awkward Maxis Highway/One-Way Road hybrids at the time.

Yet, now, in 2018, we have a prototype of the new QuickChange Xpress (QCX) system on display:

This of course, begs the question: what changed?

The big change has been the NAM's hard shift away from non-overridable/"static" items--the traditional puzzle pieces that had been the centerpiece of NAM development from its early days. In their place, more draggable items and FLEX Pieces (which initially look like puzzle pieces, but behave like draggable items, by being capable of morphing into new setups, based on the networks fed into them).

The idea of stringing together FLEX Pieces to produce partial and complete pre-fab interchanges, capable of being modified after construction, was discussed internally as early as September 2012, with small-scale realization coming with the initial QuickChange system from the NAM 32 release of January 2014. The idea of full interchanges was revisited a few times in the years following, including a mysterious reveal of an early prototype in 2016:

The advantages of going FLEX are myriad. The components that make up the interchange are existing modular pieces, and aside from making the preview model, the setup can be built using what is known as "RUL0 code" (an SC4-specific scripting format), rather than having to piece together an entire setup with new path files, exemplars, and Instance IDs.

Additionally, unlike the traditional static setup used with the Maxis Highways, these FLEX-based interchanges can be modified on the fly, accepting overrides such that a single interchange can be used with multiple networks. Using a static approach, we would have to create a piece for each interchange setup for each network, and if one needed to widen their highway, or alter the design in anyway (i.e. adding an exit-only lane), it would require a complete bulldoze. That's not the case a FLEX-based design.

While the 2016 prototype is a very basic setup, the more recent example shown includes turn lanes, on both the surface network and the approaching ramp. The goal with this is to not only increase the realism of these pre-fab setups, but also to make what would be a very complex build (combining various modular RHW items and the FLEX Turn Lanes system), into something that literally takes just one click, and will be of interest to RHW users of all skill levels.

QuickChange Xpress with Type D1 Ramp Modification

QuickChange Xpress Type 230 Diamond

In addition to all this, it also addresses the common complaints about how difficult it can be to build RHW interchanges (particularly using the old puzzle pieces) on hilly terrain. The underlying network flag design used in the FLEX setup here, however, was specifically engineered to allow for slope tolerance, as shown in the video below:

In short, the RHW system is, at long last, on the verge of becoming a much friendlier NAM component to use, by opening up its range of realistic interchange solutions to a wider audience of SC4 players. While the initial designs shown here are conventional diamond interchanges, more setups--including highway-to-highway interchanges--are in the planning stages.

The NAM Team famously does not give out release dates, or timelines for release (the one time we did--NAM 31 in 2013--was a disaster), but look for the initial set of QuickChange Xpress interchanges to make their public debut sometime within the next couple of release cycles.

ABOUT THE NETWORK ADDON MOD (NAM)

The Network Addon Mod, or NAM, is a modification for SimCity 4 Deluxe (or SimCity 4 with the Rush Hour Expansion pack), which adds a myriad of new transport network items, ranging from ground light rail, to fractional-angle roads, to roundabouts, and much more. It also includes bugfixes to Maxis items and a highly optimized set of traffic simulator plugins, improving pathfinding accuracy and performance. Started in 2004, the project still maintains a small but active development and support team, looking to expand the capabilities of Maxis' classic city simulator even more.

Network Addon Mod Version 36 Released for SimCity 4

Network Addon Mod Version 36 Released for SimCity 4

News

SimCity 4's long-running transportation modding project is still going, with a new release featuring the long-awaited FLEX Turn Lanes and Draggable Elevated...

SimCity 4 Network Addon Mod Version 36 FLEX Turn Lanes Preview, Part 1

SimCity 4 Network Addon Mod Version 36 FLEX Turn Lanes Preview, Part 1

News 5 comments

Sneak peek at the next evolution in SC4 turn lanes.

Network Addon Mod 35 Released for SimCity 4

Network Addon Mod 35 Released for SimCity 4

News 7 comments

The NAM Team is pleased to announce the official release of the 35th edition of the Network Addon Mod, NAM 35, for EA Maxis' 2003 title SimCity 4. NAM...

Network Addon Mod Version 33 Released for SimCity 4

Network Addon Mod Version 33 Released for SimCity 4

News 2 comments

The NAM Team is pleased to announce the official release of the 33rd edition of the Network Addon Mod, NAM 33, for EA Maxis' 2003 title SimCity 4. NAM...

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Network Addon Mod - Version 36 [Windows]

Network Addon Mod - Version 36 [Windows]

Full Version 8 comments

The Network Addon Mod (NAM) combines all transportation network-related fixes, additions and new creations that have been released so far. It will add...

Network Addon Mod - Version 36 [MacOS Sierra]

Network Addon Mod - Version 36 [MacOS Sierra]

Full Version 21 comments

The Network Addon Mod (NAM) combines all transportation network-related fixes, additions and new creations that have been released so far. It will add...

Comments  (0 - 10 of 162)
Macsime
Macsime

Hello,

I have the game buy on Mac App Store on MacOS High Sierra and I can't install the mod. I have unlock the security install in preference menu for try to open the installer but doesn't work... :(

How can fix the mod install ?

Thank you for your future answer.

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TarkusSC4 Creator
TarkusSC4

The NAM Team has zero active Mac users among its membership right now, so unfortunately, we're extremely limited in terms of our ability to provide installation help for the Mac version of the mod, especially with High Sierra or Mojave (Sierra was the newest macOS version when NAM Version 36 was released). Most of the advice we can give would be from what we've heard from other Mac users.

Apparently, moving the installer out of the .dmg to the desktop, unchecking "Unmark Auto Detect CPU Info for Direct 3D" and checking "Use Mac Driver instead of X11" under the "Screen Options" section of Wineskin may help with High Sierra. As we don't presently have a High Sierra machine at our disposal, we can't verify that this works.

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Fandore
Fandore

been trying for days to try and make an interstate inter loop system, typically when two three lane highways intersect north, south, east and west... there really should be something for this as this IMOP also... its REALLY annoying we cant get acceleration lanes but thats just a kink i have and am a little annoyed with it... are there people still doing work or this mod? i could do a little asset creation if needed =)

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TarkusSC4 Creator
TarkusSC4

If you're referring the game's default highways, there are indeed no acceleration lane options there, but if you look into the more advanced RealHighway option (which is the main focus of highway development in the mod), there's definitely options to have them. The NAM is indeed still an active project, with work on Version 37 ongoing--our homebase is over at sc4devotion.com.

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valdimir1986
valdimir1986

Isn't there any way to download the files without the installer so I can just place in the Plugins folder? The installer program freezes and thus this is the only mod I am unable to install, while it is the one I want the most...

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TarkusSC4 Creator
TarkusSC4

There isn't really a feasible way to do a manual install, unfortunately. There's just too many moving parts--particularly, options that don't get along with one another-- and it'd take incredibly detailed knowledge of both the game and the mod in order to successfully accomplish it.

What operating system are you running?

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valdimir1986
valdimir1986

I see, that is a pity. I am using Linux, and executing the installer via wine (technically, that is also what Mac OS users do). Thank you for the reply!

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TarkusSC4 Creator
TarkusSC4

We encountered another Linux user recently who had similar issues . . . while we're not really able to provide support for running it on Linux directly ourselves, there are quite a few helpful Linux SC4 players over on Simtropolis. One of users there had success with Wine 1.8 on Ubuntu.

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TarkusSC4 Creator
TarkusSC4

The Mac version of NAM 36 has been re-uploaded after a minor tweak.

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Guest
Guest

I don't have updated NAM (I use Nam32 now).
Is it available to Nam35 without Nam 33 or Nam 34?

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TarkusSC4 Creator
TarkusSC4

Yes, absolutely. In fact, if you run the NAM 35 installer with your old version still installed, it'll detect your previous options, and automatically select them in your new install. I'd probably wait until NAM 36 is out to do your upgrade, however, as we are getting really close to release. I can't give a specific date (we don't know yet when, as it's dependent on the last phases of testing), but it is imminent.

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A MUST HAVE FOR SIMCITY 4

Apr 29 2011 by nukeu

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13 years ago, this happened. Still going. #simcity4 Wiki.sc4devotion.com

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Also, it's been released, too. Sc4devotion.com

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Had a secret project going for awhile now . . . here it is in action. Youtube.com

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