2.0 KiB
Modeling assumptions
This is pretty disorganized right now, just need to start something.
Sidewalk connectivity
Should it be possible to close sidewalks for construction? Right now, this breaks too many assumptions that're hard to recompute. Building front paths and bus stops are associated with a sidewalk, so that makes applying the edit way more unclear. Closing intersections is still useful -- remove all of the vehicle turns, but allow the walking turns.
Graph connectivity
For now, no map edits should be able to impact any of the trips possible in the baseline -- so no impacting graph connectivity, no killing bus stops, etc.
Over-taking
Unsupported right now, but it should happen. Unlocks shared bike/ped trails like the Burke.
Left turns in the middle of a road
Into a driveway, or using the shared left turn lanes. This should be supported. Parking and unparking already have the ability to block one queue -- extend that.
Demand modeling
When the player makes it much more/less convenient to take some trip, people will eventually shift mode or take different trips altogether. Not attempting any of that yet -- just using PSRC trips. I don't understand the demand modeling process well at all yet.
Bike/bus lane connectivity
Bikes and buses can make crazy left turns from the rightmost protected lane. Alternatively, stop generating those turns and start generating turns between protected and general lanes.
Parking
No restrictions -- all available spots are treated equally. No cost, time limits, or private spots.
U-turns
Only happen at dead-ends right now. But there are a few important ones to support -- like Montlake Blvd to go WB on 520.
Roads without sidewalks
Last-leg routing... pedestrians need to walk on the road. How to model this? Happens in Seattle when there's parking without sidewalks nearby.
One-at-a-time roads
Some roads are "two-way", but have parking on both sides, and so are effectively one way at a time. How's this tagged in OSM? How do we model this?