I think something like this would be best: The Effect of Right-of-Way on Traffic Patterns in Beijing I'm translating the Mandarin using a dictionary here, so I might have missed something subtle. Plus, I don't know precisely what your paper is about, so take it with a grain of salt.

The effect of right-of-way on long-distance car journeys in Beijing. or perhaps The effect of right-of-way on long-distance car journeys through Beijing.