Hi
fachriuwu, welcome to SC4 Devotion! By chance did you place the El-Rail Dual-Networking pieces in the vicinity of a transit station or other Transit-Enabled Lot (TE Lot)? If so, that's a known issue with the base game--it's actually
FAQ #24 in the NAM Documentation.
While once thought unfixable,
simmaster07 released a DLL-based plugin called SC4Fix.dll in late 2015, which solves the puzzle piece/TE Lot crash (and a later update also added a fix for the infamous Prop Pox issue). SC4Fix is
available at Simtropolis. Install it to the root folder of your My Documents\SimCity 4\Plugins directory.
Hope that helps!
-Alex