compute total distance by lane of a running track

lanes.js

let laneWidthMeters = 1.22

function getLanes({laneOneMeters, aRadMeters, bRadMeters, numLanes}) {
  let turnMeters = 2 * Math.PI * aRadMeters
  let straightMeters = laneOneMeters - turnMeters
  let lanes = [
    ['#', 'distance (m)', 'turn (m)', 'straight (m)'],
  ]

  lanes.push([
    1,
    laneOneMeters,
    Number(turnMeters.toFixed(2)),
    Number(straightMeters.toFixed(2)),
  ])

  for (var i = 1; i < numLanes; i++) {
    turnMeters = 2 * Math.PI * (aRadMeters + laneWidthMeters * i)
    lanes.push([
      i+1,
      Number((turnMeters + straightMeters).toFixed(2)),
      Number(turnMeters.toFixed(2)),
      Number(straightMeters.toFixed(2))
    ])
  }


  return lanes
}

let chicago = {
  laneOneMeters: 400,
  aRadMeters: 40.43,
  bRadMeters: 39.98,
  numLanes: 8,
}

let franklin = {
  // laneOneMeters: 377,
  laneOneMeters: 379.92,
  aRadMeters: 38.57,
  bRadMeters: 39.27,
  numLanes: 9,
}

console.table(getLanes(chicago))

/*
┌─────────┬─────┬────────────────┬────────────┬────────────────┐
│ (index) │  0  │       1        │     2      │       3        │
├─────────┼─────┼────────────────┼────────────┼────────────────┤
│    0    │ '#' │ 'distance (m)' │ 'turn (m)' │ 'straight (m)' │
│    1    │  1  │      400       │   254.03   │     145.97     │
│    2    │  2  │     407.67     │   261.69   │     145.97     │
│    3    │  3  │     415.33     │   269.36   │     145.97     │
│    4    │  4  │      423       │   277.03   │     145.97     │
│    5    │  5  │     430.66     │   284.69   │     145.97     │
│    6    │  6  │     438.33     │   292.36   │     145.97     │
│    7    │  7  │     445.99     │   300.02   │     145.97     │
│    8    │  8  │     453.66     │   307.69   │     145.97     │
└─────────┴─────┴────────────────┴────────────┴────────────────┘
*/