Hi everyone,

I'm have trouble merging junctions from OpenStreetMaps. The problem is that for 
my country, almost all the roads are drawn as 2 seperate 1-way roads rather 
than 2 parallel roads. 

Whenever these roads meet at a junction, it ends up creating 4 separate 
junction for each intersection and it will often result in un-realistic jams. 
http://i.imgur.com/UQ2DoxH.png

I've tried using the merge junction function in OSM, but it often creates very 
weird junctions, and sometimes it doesn't merge some of the junctions at all.
http://i.imgur.com/CDtN8LM.png

I've tried modifying the map directly in OSM by merging all 4 nodes into one. 
http://i.imgur.com/Y39eInd.png

However I'm not sure if it works. When I run the simulation, I'll observe that 
cars going straight will not proceed even though it is green light: 
http://i.imgur.com/IfUSQNB.png 

Anyone has any solutions on how to solve the trouble of the junctions? Thanks
                                          
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