People's Park Food Centre in Chinatown
In all of the years that I've been in Singapore, I've never been to People's Park Food Centre, in part because I figured that it would be filled with local food stalls just like any other hawker center. But as it turns out, there is one row of stalls along the eastern edge serving food from mainland China instead, including a place focused on ma la xiang guo, which incidentally had the longest line of them all. Next door to that was this guy selling a few different kinds of noodles (stall 1044), such as this chuan bei liang fen. It was spicy, but it definitely wasn't as refreshing as those Shaanxi noodles from Geylang, especially since these noodles still came out half-warm.
Fortunately, I spotted a number of other stalls out in the courtyard (even further east just outside of the train station) where I went to get this bowl of ma la liang pi next. It was using heavier rice noodles, but it was definitely much more fragrant, in part due to a peanut sauce on top, if I identified it correctly. I definitely prefer this one over the first guy, but unfortunately neither of these could compare to those Shaanxi noodles in Geylang.