OSM data for Bristol contain almost no building heights at all, so are effectively useless for direct estimation of population density see this script. The global population density data given in #2 could nevertheless be used to generate these estimates, by down-sampling to OSM residential locations, so that need not be such a hindrance.
OSM data for Bristol contain almost no building heights at all, so are effectively useless for direct estimation of population density see this script. The global population density data given in #2 could nevertheless be used to generate these estimates, by down-sampling to OSM residential locations, so that need not be such a hindrance.