layers to modify/add

[mpadge]

to modify

• exposure - change to direct pollution exposure, instead of mortality effect thereof
• vehicular flow layer - should be in same units (trips per day) as pedestrian flow

to add

• layer of pedestrian exposure to vehicular flows
• exposure of pedestrians to vehicular crash risk
• exposure to green (via satellite NDVI

This list should be viewed as potential additional layers, to be moved to own issues if and when we agree to proceed @Robinlovelace please indicate your thoughts on the latter two in particular, and suggest any other layers you can think of

[Robinlovelace]

Definitely agreed on the exposure layer to modify. Regard 'to add', I think 1 and 2 can be treated as the same thing and that exposure to parks is a 'nice to have'.

[mpadge]

Great. I've got some ideas for 2 that should mean it can be potentially different to 1, essentially because the risk of walking in the direction of car traffic should be lower than the risk of crossing over. That's all pretty directly calculable. I've never tried, but could be interesting...

[Robinlovelace]

Heads-up @mpadge I think this is almost done, I just added that the vehicle flow layer should be in the same units as the pedestrian flow layer if possible.