Modify nearest location algorithm

[djgroen]

When household choose parks, shops etc., size should also play a partial role, in addition to distance.

[arindamsaha1507]

Needs updating for FACS 2.0.

[djgroen]

• Houses: N/A
• Offices
  • Neighbour list creation: nearest 50 offices, then randomly pick one.
  • Choice in list: N/A
• Shopping
  • Neighbour list creation: nearest 10 shops
  • Choice in list: unweighted random choice
• Park
  • Neighbour list creation: nearest park
  • Choice in list: N/A
• Leisure
  • Neighbour list creation: nearest 10 leisure
  • Choice in list: unweighted random choice
• School
  • Neighbour list creation: nearest 5 schools, then randomly pick one.
  • Choice in list: N/A
• Hospital
  • Neighbour list creation: nearest 5 hospitals
  • Choice in list: weighted random by area.
• Supermarket
  • Neighbour list creation: nearest 10 supermarkets
  • Choice in list: unweighted random choice