{
 "source": "sheets.works, Six seconds, September 2026. Every number below is explained in the page's method section.",
 "design_speed_m_s": {
  "UK": 1.2,
  "UK_allowed_since_2019": 1.0,
  "Germany": 1.2,
  "Australia": 1.2,
  "Singapore": 1.2,
  "USA": 1.07,
  "USA_1961_to_2009": 1.22,
  "Japan_to_centre_line": 1.0,
  "India": 0.95
 },
 "walkers": {
  "rulebook": 1.2,
  "men_over_65_england_at_home": 0.9,
  "women_over_65_england_at_home": 0.8,
  "older_people_with_mobility_limit": 0.77,
  "share_below_1_2_men_over_65": 0.76,
  "share_below_1_2_women_over_65": 0.85
 },
 "lab_means_cm_s_bohannon_2011": {
  "decades": [
   "20s",
   "30s",
   "40s",
   "50s",
   "60s",
   "70s",
   "80+"
  ],
  "men": [
   135.8,
   143.3,
   143.4,
   143.3,
   133.9,
   126.2,
   96.8
  ],
  "women": [
   134.1,
   133.7,
   139.0,
   131.3,
   124.1,
   113.2,
   94.3
  ]
 },
 "uk_adult_age_mix_ons_2023": {
  "20s": 0.162,
  "30s": 0.178,
  "40s": 0.161,
  "50s": 0.174,
  "60s": 0.146,
  "70s": 0.113,
  "80+": 0.066
 },
 "roads": [
  {
   "name": "the rulebook's road, London",
   "width_m": 7,
   "lanes": 2,
   "green_man_s": 6,
   "countdown_s": 6,
   "rule": "TSM ch.6: 6 s + 7/1.2"
  },
  {
   "name": "Oxford Circus, the diagonal",
   "width_m": 27.7,
   "lanes": 4,
   "green_man_s": 6,
   "countdown_s": 24,
   "osm_way": 622158403
  },
  {
   "name": "Queens Boulevard at 63rd Drive, New York",
   "width_m": 61,
   "lanes": 12,
   "medians_m": [
    16,
    45
   ],
   "walk_s": 7,
   "flashing_hand_s": 57,
   "rule": "MUTCD: 7 s + 61/1.07"
  },
  {
   "name": "Aurobindo Marg at AIIMS, Delhi",
   "width_m": 41.4,
   "lanes": 8,
   "medians_m": [
    20.7
   ],
   "red_for_traffic_s": 44,
   "rule": "IRC:103: 41.4/0.95",
   "osm_way": 682848213
  },
  {
   "name": "Lorong 2 Toa Payoh, Singapore",
   "width_m": 26,
   "lanes": 6,
   "green_man_s": 24,
   "green_man_plus_extra_s": 6,
   "osm_way": 1553550198
  },
  {
   "name": "Botany Road, Sydney",
   "width_m": 14.7,
   "lanes": 4,
   "green_s_measured": 7.8,
   "flashing_red_s_measured": 13.6,
   "measurements": 10,
   "source": "Better Intersections, ODbL",
   "osm_way": 1198615528
  },
  {
   "name": "Karl-Marx-Allee, Berlin",
   "width_m": 15.7,
   "lanes": 4,
   "green_man_s": 6,
   "countdown_s": 14,
   "osm_way": 1163697800
  },
  {
   "name": "Yonge and Dundas, Toronto",
   "width_m": 25.2,
   "lanes": 4,
   "walk_s": 7,
   "countdown_s": 21,
   "osm_way": 695649188
  },
  {
   "name": "Meiji-dori at Shibuya, Tokyo",
   "width_m": 30.4,
   "lanes": 6,
   "total_s": 30,
   "rule": "Japan: 30.4/1.0",
   "osm_way": 754454448
  },
  {
   "name": "Shibuya scramble, the diagonal",
   "width_m": 32,
   "lanes": 6,
   "total_s": 32,
   "osm_way": 754454449
  }
 ],
 "london_2009_trial": {
  "junctions": 9,
  "green_man_before_s": "8 to 10",
  "green_man_after_s": 6,
  "cars_through_change_pct": 6.5,
  "cross_on_red_before_pct": 46,
  "cross_on_red_after_pct": 51,
  "impaired_feel_safe_before_pct": 70,
  "impaired_feel_safe_after_pct": 58,
  "source": "TRL PPR411 via TfL LRSU summary 16, 2009"
 }
}