That reminds me to the graphic program I had on my Atari ST F back in the 90s. Drawing pixel for pixel. Only black and white (because I had that black and white monitor). With a mouse as big as a today's hard disk.
I like that map. It's very clear. And it has the rough charm of early computer adventures.
Perhaps the coastline could be double thick to get it visually different to the streets.
*thinks about a retro map-challenge in black and white (or 16 colors) and 640 x 480 VGA resolution*