@explorables/berlin_8_am/dist/index.es.js

This explorable illustrates a model for traffic and congestion and the phenomenon knowns as phantom traffic jams, spontaneously emergent congested traffic segments that move slowly and oppositely to the traffic.

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      (s = i[a]) && t.call(s, s.__data__, a, i);
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}
function Xl(t) {
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}
function Bl(t) {
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}
function Hl(t, n) {
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}
function Ul(t, n) {
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    this.setAttributeNS(t.space, t.local, n);
  };
}
function Gl(t, n) {
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    e == null ? this.removeAttribute(t) : this.setAttribute(t, e);
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}
function Yl(t, n) {
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    e == null ? this.removeAttributeNS(t.space, t.local) : this.setAttributeNS(t.space, t.local, e);
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}
function Vl(t, n) {
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    var r = this.node();
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  return this.each((n == null ? e.local ? Bl : Xl : typeof n == "function" ? e.local ? Yl : Gl : e.local ? Ul : Hl)(e, n));
}
function Do(t) {
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}
function Kl(t) {
  return function() {
    this.style.removeProperty(t);
  };
}
function Zl(t, n, e) {
  return function() {
    this.style.setProperty(t, n, e);
  };
}
function Wl(t, n, e) {
  return function() {
    var r = n.apply(this, arguments);
    r == null ? this.style.removeProperty(t) : this.style.setProperty(t, r, e);
  };
}
function Jl(t, n, e) {
  return arguments.length > 1 ? this.each((n == null ? Kl : typeof n == "function" ? Wl : Zl)(t, n, e ?? "")) : nn(this.node(), t);
}
function nn(t, n) {
  return t.style.getPropertyValue(n) || Do(t).getComputedStyle(t, null).getPropertyValue(n);
}
function Ql(t) {
  return function() {
    delete this[t];
  };
}
function tc(t, n) {
  return function() {
    this[t] = n;
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}
function nc(t, n) {
  return function() {
    var e = n.apply(this, arguments);
    e == null ? delete this[t] : this[t] = e;
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}
function ec(t, n) {
  return arguments.length > 1 ? this.each((n == null ? Ql : typeof n == "function" ? nc : tc)(t, n)) : this.node()[t];
}
function qo(t) {
  return t.trim().split(/^|\s+/);
}
function ui(t) {
  return t.classList || new Xo(t);
}
function Xo(t) {
  this._node = t, this._names = qo(t.getAttribute("class") || "");
}
Xo.prototype = {
  add: function(t) {
    var n = this._names.indexOf(t);
    n < 0 && (this._names.push(t), this._node.setAttribute("class", this._names.join(" ")));
  },
  remove: function(t) {
    var n = this._names.indexOf(t);
    n >= 0 && (this._names.splice(n, 1), this._node.setAttribute("class", this._names.join(" ")));
  },
  contains: function(t) {
    return this._names.indexOf(t) >= 0;
  }
};
function Bo(t, n) {
  for (var e = ui(t), r = -1, i = n.length; ++r < i; ) e.add(n[r]);
}
function Ho(t, n) {
  for (var e = ui(t), r = -1, i = n.length; ++r < i; ) e.remove(n[r]);
}
function rc(t) {
  return function() {
    Bo(this, t);
  };
}
function ic(t) {
  return function() {
    Ho(this, t);
  };
}
function ac(t, n) {
  return function() {
    (n.apply(this, arguments) ? Bo : Ho)(this, t);
  };
}
function oc(t, n) {
  var e = qo(t + "");
  if (arguments.length < 2) {
    for (var r = ui(this.node()), i = -1, a = e.length; ++i < a; ) if (!r.contains(e[i])) return !1;
    return !0;
  }
  return this.each((typeof n == "function" ? ac : n ? rc : ic)(e, n));
}
function sc() {
  this.textContent = "";
}
function uc(t) {
  return function() {
    this.textContent = t;
  };
}
function lc(t) {
  return function() {
    var n = t.apply(this, arguments);
    this.textContent = n ?? "";
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}
function cc(t) {
  return arguments.length ? this.each(t == null ? sc : (typeof t == "function" ? lc : uc)(t)) : this.node().textContent;
}
function fc() {
  this.innerHTML = "";
}
function hc(t) {
  return function() {
    this.innerHTML = t;
  };
}
function pc(t) {
  return function() {
    var n = t.apply(this, arguments);
    this.innerHTML = n ?? "";
  };
}
function dc(t) {
  return arguments.length ? this.each(t == null ? fc : (typeof t == "function" ? pc : hc)(t)) : this.node().innerHTML;
}
function gc() {
  this.nextSibling && this.parentNode.appendChild(this);
}
function _c() {
  return this.each(gc);
}
function yc() {
  this.previousSibling && this.parentNode.insertBefore(this, this.parentNode.firstChild);
}
function vc() {
  return this.each(yc);
}
function mc(t) {
  var n = typeof t == "function" ? t : Co(t);
  return this.select(function() {
    return this.appendChild(n.apply(this, arguments));
  });
}
function wc() {
  return null;
}
function bc(t, n) {
  var e = typeof t == "function" ? t : Co(t), r = n == null ? wc : typeof n == "function" ? n : si(n);
  return this.select(function() {
    return this.insertBefore(e.apply(this, arguments), r.apply(this, arguments) || null);
  });
}
function xc() {
  var t = this.parentNode;
  t && t.removeChild(this);
}
function Mc() {
  return this.each(xc);
}
function $c() {
  var t = this.cloneNode(!1), n = this.parentNode;
  return n ? n.insertBefore(t, this.nextSibling) : t;
}
function Ac() {
  var t = this.cloneNode(!0), n = this.parentNode;
  return n ? n.insertBefore(t, this.nextSibling) : t;
}
function Tc(t) {
  return this.select(t ? Ac : $c);
}
function Nc(t) {
  return arguments.length ? this.property("__data__", t) : this.node().__data__;
}
function kc(t) {
  return function(n) {
    t.call(this, n, this.__data__);
  };
}
function Sc(t) {
  return t.trim().split(/^|\s+/).map(function(n) {
    var e = "", r = n.indexOf(".");
    return r >= 0 && (e = n.slice(r + 1), n = n.slice(0, r)), { type: n, name: e };
  });
}
function Pc(t) {
  return function() {
    var n = this.__on;
    if (n) {
      for (var e = 0, r = -1, i = n.length, a; e < i; ++e)
        a = n[e], (!t.type || a.type === t.type) && a.name === t.name ? this.removeEventListener(a.type, a.listener, a.options) : n[++r] = a;
      ++r ? n.length = r : delete this.__on;
    }
  };
}
function Ec(t, n, e) {
  return function() {
    var r = this.__on, i, a = kc(n);
    if (r) {
      for (var o = 0, s = r.length; o < s; ++o)
        if ((i = r[o]).type === t.type && i.name === t.name) {
          this.removeEventListener(i.type, i.listener, i.options), this.addEventListener(i.type, i.listener = a, i.options = e), i.value = n;
          return;
        }
    }
    this.addEventListener(t.type, a, e), i = { type: t.type, name: t.name, value: n, listener: a, options: e }, r ? r.push(i) : this.__on = [i];
  };
}
function Oc(t, n, e) {
  var r = Sc(t + ""), i, a = r.length, o;
  if (arguments.length < 2) {
    var s = this.node().__on;
    if (s) {
      for (var l = 0, u = s.length, c; l < u; ++l)
        for (i = 0, c = s[l]; i < a; ++i)
          if ((o = r[i]).type === c.type && o.name === c.name)
            return c.value;
    }
    return;
  }
  for (s = n ? Ec : Pc, i = 0; i < a; ++i) this.each(s(r[i], n, e));
  return this;
}
function Uo(t, n, e) {
  var r = Do(t), i = r.CustomEvent;
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}
function zc(t, n) {
  return function() {
    return Uo(this, t, n);
  };
}
function Ic(t, n) {
  return function() {
    return Uo(this, t, n.apply(this, arguments));
  };
}
function Cc(t, n) {
  return this.each((typeof n == "function" ? Ic : zc)(t, n));
}
function* Rc() {
  for (var t = this._groups, n = 0, e = t.length; n < e; ++n)
    for (var r = t[n], i = 0, a = r.length, o; i < a; ++i)
      (o = r[i]) && (yield o);
}
var Go = [null];
function q(t, n) {
  this._groups = t, this._parents = n;
}
function Ln() {
  return new q([[document.documentElement]], Go);
}
function jc() {
  return this;
}
q.prototype = Ln.prototype = {
  constructor: q,
  select: ll,
  selectAll: pl,
  selectChild: yl,
  selectChildren: bl,
  filter: xl,
  data: kl,
  enter: Ml,
  exit: Pl,
  join: El,
  merge: Ol,
  selection: jc,
  order: zl,
  sort: Il,
  call: Rl,
  nodes: jl,
  node: Fl,
  size: Ll,
  empty: Dl,
  each: ql,
  attr: Vl,
  style: Jl,
  property: ec,
  classed: oc,
  text: cc,
  html: dc,
  raise: _c,
  lower: vc,
  append: mc,
  insert: bc,
  remove: Mc,
  clone: Tc,
  datum: Nc,
  on: Oc,
  dispatch: Cc,
  [Symbol.iterator]: Rc
};
function Fc(t) {
  return typeof t == "string" ? new q([[document.querySelector(t)]], [document.documentElement]) : new q([[t]], Go);
}
function li(t, n, e) {
  t.prototype = n.prototype = e, e.constructor = t;
}
function Yo(t, n) {
  var e = Object.create(t.prototype);
  for (var r in n) e[r] = n[r];
  return e;
}
function Dn() {
}
var Nn = 0.7, me = 1 / Nn, Zt = "\\s*([+-]?\\d+)\\s*", kn = "\\s*([+-]?(?:\\d*\\.)?\\d+(?:[eE][+-]?\\d+)?)\\s*", rt = "\\s*([+-]?(?:\\d*\\.)?\\d+(?:[eE][+-]?\\d+)?)%\\s*", Lc = /^#([0-9a-f]{3,8})$/, Dc = new RegExp(`^rgb\\(${Zt},${Zt},${Zt}\\)$`), qc = new RegExp(`^rgb\\(${rt},${rt},${rt}\\)$`), Xc = new RegExp(`^rgba\\(${Zt},${Zt},${Zt},${kn}\\)$`), Bc = new RegExp(`^rgba\\(${rt},${rt},${rt},${kn}\\)$`), Hc = new RegExp(`^hsl\\(${kn},${rt},${rt}\\)$`), Uc = new RegExp(`^hsla\\(${kn},${rt},${rt},${kn}\\)$`), Yi = {
  aliceblue: 15792383,
  antiquewhite: 16444375,
  aqua: 65535,
  aquamarine: 8388564,
  azure: 15794175,
  beige: 16119260,
  bisque: 16770244,
  black: 0,
  blanchedalmond: 16772045,
  blue: 255,
  blueviolet: 9055202,
  brown: 10824234,
  burlywood: 14596231,
  cadetblue: 6266528,
  chartreuse: 8388352,
  chocolate: 13789470,
  coral: 16744272,
  cornflowerblue: 6591981,
  cornsilk: 16775388,
  crimson: 14423100,
  cyan: 65535,
  darkblue: 139,
  darkcyan: 35723,
  darkgoldenrod: 12092939,
  darkgray: 11119017,
  darkgreen: 25600,
  darkgrey: 11119017,
  darkkhaki: 12433259,
  darkmagenta: 9109643,
  darkolivegreen: 5597999,
  darkorange: 16747520,
  darkorchid: 10040012,
  darkred: 9109504,
  darksalmon: 15308410,
  darkseagreen: 9419919,
  darkslateblue: 4734347,
  darkslategray: 3100495,
  darkslategrey: 3100495,
  darkturquoise: 52945,
  darkviolet: 9699539,
  deeppink: 16716947,
  deepskyblue: 49151,
  dimgray: 6908265,
  dimgrey: 6908265,
  dodgerblue: 2003199,
  firebrick: 11674146,
  floralwhite: 16775920,
  forestgreen: 2263842,
  fuchsia: 16711935,
  gainsboro: 14474460,
  ghostwhite: 16316671,
  gold: 16766720,
  goldenrod: 14329120,
  gray: 8421504,
  green: 32768,
  greenyellow: 11403055,
  grey: 8421504,
  honeydew: 15794160,
  hotpink: 16738740,
  indianred: 13458524,
  indigo: 4915330,
  ivory: 16777200,
  khaki: 15787660,
  lavender: 15132410,
  lavenderblush: 16773365,
  lawngreen: 8190976,
  lemonchiffon: 16775885,
  lightblue: 11393254,
  lightcoral: 15761536,
  lightcyan: 14745599,
  lightgoldenrodyellow: 16448210,
  lightgray: 13882323,
  lightgreen: 9498256,
  lightgrey: 13882323,
  lightpink: 16758465,
  lightsalmon: 16752762,
  lightseagreen: 2142890,
  lightskyblue: 8900346,
  lightslategray: 7833753,
  lightslategrey: 7833753,
  lightsteelblue: 11584734,
  lightyellow: 16777184,
  lime: 65280,
  limegreen: 3329330,
  linen: 16445670,
  magenta: 16711935,
  maroon: 8388608,
  mediumaquamarine: 6737322,
  mediumblue: 205,
  mediumorchid: 12211667,
  mediumpurple: 9662683,
  mediumseagreen: 3978097,
  mediumslateblue: 8087790,
  mediumspringgreen: 64154,
  mediumturquoise: 4772300,
  mediumvioletred: 13047173,
  midnightblue: 1644912,
  mintcream: 16121850,
  mistyrose: 16770273,
  moccasin: 16770229,
  navajowhite: 16768685,
  navy: 128,
  oldlace: 16643558,
  olive: 8421376,
  olivedrab: 7048739,
  orange: 16753920,
  orangered: 16729344,
  orchid: 14315734,
  palegoldenrod: 15657130,
  palegreen: 10025880,
  paleturquoise: 11529966,
  palevioletred: 14381203,
  papayawhip: 16773077,
  peachpuff: 16767673,
  peru: 13468991,
  pink: 16761035,
  plum: 14524637,
  powderblue: 11591910,
  purple: 8388736,
  rebeccapurple: 6697881,
  red: 16711680,
  rosybrown: 12357519,
  royalblue: 4286945,
  saddlebrown: 9127187,
  salmon: 16416882,
  sandybrown: 16032864,
  seagreen: 3050327,
  seashell: 16774638,
  sienna: 10506797,
  silver: 12632256,
  skyblue: 8900331,
  slateblue: 6970061,
  slategray: 7372944,
  slategrey: 7372944,
  snow: 16775930,
  springgreen: 65407,
  steelblue: 4620980,
  tan: 13808780,
  teal: 32896,
  thistle: 14204888,
  tomato: 16737095,
  turquoise: 4251856,
  violet: 15631086,
  wheat: 16113331,
  white: 16777215,
  whitesmoke: 16119285,
  yellow: 16776960,
  yellowgreen: 10145074
};
li(Dn, Ot, {
  copy(t) {
    return Object.assign(new this.constructor(), this, t);
  },
  displayable() {
    return this.rgb().displayable();
  },
  hex: Vi,
  // Deprecated! Use color.formatHex.
  formatHex: Vi,
  formatHex8: Gc,
  formatHsl: Yc,
  formatRgb: Ki,
  toString: Ki
});
function Vi() {
  return this.rgb().formatHex();
}
function Gc() {
  return this.rgb().formatHex8();
}
function Yc() {
  return Vo(this).formatHsl();
}
function Ki() {
  return this.rgb().formatRgb();
}
function Ot(t) {
  var n, e;
  return t = (t + "").trim().toLowerCase(), (n = Lc.exec(t)) ? (e = n[1].length, n = parseInt(n[1], 16), e === 6 ? Zi(n) : e === 3 ? new F(n >> 8 & 15 | n >> 4 & 240, n >> 4 & 15 | n & 240, (n & 15) << 4 | n & 15, 1) : e === 8 ? Yn(n >> 24 & 255, n >> 16 & 255, n >> 8 & 255, (n & 255) / 255) : e === 4 ? Yn(n >> 12 & 15 | n >> 8 & 240, n >> 8 & 15 | n >> 4 & 240, n >> 4 & 15 | n & 240, ((n & 15) << 4 | n & 15) / 255) : null) : (n = Dc.exec(t)) ? new F(n[1], n[2], n[3], 1) : (n = qc.exec(t)) ? new F(n[1] * 255 / 100, n[2] * 255 / 100, n[3] * 255 / 100, 1) : (n = Xc.exec(t)) ? Yn(n[1], n[2], n[3], n[4]) : (n = Bc.exec(t)) ? Yn(n[1] * 255 / 100, n[2] * 255 / 100, n[3] * 255 / 100, n[4]) : (n = Hc.exec(t)) ? Qi(n[1], n[2] / 100, n[3] / 100, 1) : (n = Uc.exec(t)) ? Qi(n[1], n[2] / 100, n[3] / 100, n[4]) : Yi.hasOwnProperty(t) ? Zi(Yi[t]) : t === "transparent" ? new F(NaN, NaN, NaN, 0) : null;
}
function Zi(t) {
  return new F(t >> 16 & 255, t >> 8 & 255, t & 255, 1);
}
function Yn(t, n, e, r) {
  return r <= 0 && (t = n = e = NaN), new F(t, n, e, r);
}
function Vc(t) {
  return t instanceof Dn || (t = Ot(t)), t ? (t = t.rgb(), new F(t.r, t.g, t.b, t.opacity)) : new F();
}
function Nr(t, n, e, r) {
  return arguments.length === 1 ? Vc(t) : new F(t, n, e, r ?? 1);
}
function F(t, n, e, r) {
  this.r = +t, this.g = +n, this.b = +e, this.opacity = +r;
}
li(F, Nr, Yo(Dn, {
  brighter(t) {
    return t = t == null ? me : Math.pow(me, t), new F(this.r * t, this.g * t, this.b * t, this.opacity);
  },
  darker(t) {
    return t = t == null ? Nn : Math.pow(Nn, t), new F(this.r * t, this.g * t, this.b * t, this.opacity);
  },
  rgb() {
    return this;
  },
  clamp() {
    return new F(Pt(this.r), Pt(this.g), Pt(this.b), we(this.opacity));
  },
  displayable() {
    return -0.5 <= this.r && this.r < 255.5 && -0.5 <= this.g && this.g < 255.5 && -0.5 <= this.b && this.b < 255.5 && 0 <= this.opacity && this.opacity <= 1;
  },
  hex: Wi,
  // Deprecated! Use color.formatHex.
  formatHex: Wi,
  formatHex8: Kc,
  formatRgb: Ji,
  toString: Ji
}));
function Wi() {
  return `#${kt(this.r)}${kt(this.g)}${kt(this.b)}`;
}
function Kc() {
  return `#${kt(this.r)}${kt(this.g)}${kt(this.b)}${kt((isNaN(this.opacity) ? 1 : this.opacity) * 255)}`;
}
function Ji() {
  const t = we(this.opacity);
  return `${t === 1 ? "rgb(" : "rgba("}${Pt(this.r)}, ${Pt(this.g)}, ${Pt(this.b)}${t === 1 ? ")" : `, ${t})`}`;
}
function we(t) {
  return isNaN(t) ? 1 : Math.max(0, Math.min(1, t));
}
function Pt(t) {
  return Math.max(0, Math.min(255, Math.round(t) || 0));
}
function kt(t) {
  return t = Pt(t), (t < 16 ? "0" : "") + t.toString(16);
}
function Qi(t, n, e, r) {
  return r <= 0 ? t = n = e = NaN : e <= 0 || e >= 1 ? t = n = NaN : n <= 0 && (t = NaN), new Z(t, n, e, r);
}
function Vo(t) {
  if (t instanceof Z) return new Z(t.h, t.s, t.l, t.opacity);
  if (t instanceof Dn || (t = Ot(t)), !t) return new Z();
  if (t instanceof Z) return t;
  t = t.rgb();
  var n = t.r / 255, e = t.g / 255, r = t.b / 255, i = Math.min(n, e, r), a = Math.max(n, e, r), o = NaN, s = a - i, l = (a + i) / 2;
  return s ? (n === a ? o = (e - r) / s + (e < r) * 6 : e === a ? o = (r - n) / s + 2 : o = (n - e) / s + 4, s /= l < 0.5 ? a + i : 2 - a - i, o *= 60) : s = l > 0 && l < 1 ? 0 : o, new Z(o, s, l, t.opacity);
}
function Zc(t, n, e, r) {
  return arguments.length === 1 ? Vo(t) : new Z(t, n, e, r ?? 1);
}
function Z(t, n, e, r) {
  this.h = +t, this.s = +n, this.l = +e, this.opacity = +r;
}
li(Z, Zc, Yo(Dn, {
  brighter(t) {
    return t = t == null ? me : Math.pow(me, t), new Z(this.h, this.s, this.l * t, this.opacity);
  },
  darker(t) {
    return t = t == null ? Nn : Math.pow(Nn, t), new Z(this.h, this.s, this.l * t, this.opacity);
  },
  rgb() {
    var t = this.h % 360 + (this.h < 0) * 360, n = isNaN(t) || isNaN(this.s) ? 0 : this.s, e = this.l, r = e + (e < 0.5 ? e : 1 - e) * n, i = 2 * e - r;
    return new F(
      cr(t >= 240 ? t - 240 : t + 120, i, r),
      cr(t, i, r),
      cr(t < 120 ? t + 240 : t - 120, i, r),
      this.opacity
    );
  },
  clamp() {
    return new Z(ta(this.h), Vn(this.s), Vn(this.l), we(this.opacity));
  },
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