3 SS2-5 CHUI LODGE

A quick review of the stage, detailing the overall route, the route in 1km sections, route elevation profile and route curvature profile.

3.1 Stage Route Preview

Static map, significant corners highlighted:

3.2 Segmented Route

1km route sections, aligned to read left to right; significant corners highlighted.

3.3 Speed Estimates

Estimates of speed along the route according to a very simple acceleration model.

Kilometer section speeds (kmtime is time in seconds to complete that segment; avspeed is in km/h):

kmsection section_length km_time av_speed maxspeed
1 0.99 33.76836 105.54259 145
2 1.00 28.74989 125.21786 145
3 1.00 32.45312 110.92925 145
4 1.00 26.92563 133.70163 145
5 1.00 29.77924 120.88958 145
6 1.00 24.82940 144.98943 145
7 1.00 33.65815 106.95776 145
8 1.00 30.86626 116.63220 145
9 1.00 28.03304 128.41991 145
10 1.00 30.31189 118.76527 145
11 1.00 36.48278 98.67669 145
12 1.00 30.88675 116.55482 145
13 1.00 36.10612 99.70610 145
14 0.88 26.77067 118.33847 145

Anticipated stage time: 7m 9.6s

Speed profile chart: this chart shows the anticipated speed over distance into route on a per kilometer basis (the green area is flat out, the pink is the sort of slow you see at a hairpin):

3.4 Elevation and Convexity Index into Route

Elevation and significant curvature vs distance into stage:

(Note that this uses a different curvature measure to the route plots; specifically, the curvature measure used here is the convexity index.)

Elevation delta signature — order the severity of height changes over each 10m section of the stage:

Split section elevation profiles can be found in the stage km section summary table.

3.4.1 Left and Right

How does the stage vary in terms of left and right turns?

Order the severity of right and left turns over each 10m section of the stage:

Kilometer segment convexity index signatures can be found in steg stage km section summary table.

Table 3.1: Five longest straights (m)
Distance into stage (km) Straight length (m)
4.36 140
3.75 260
2.92 490
2.45 120
1.19 260

3.4.2 Sinuosity and Straightness

Sinuosity and straightness are technical measures with specific defintions. They may or may not be that useful for route analysis in their current form. The intention is to try to find ways of identifying variously “interesting” kilometer stretches.

(#tab:sinuosity_table-4)Stage segmented into 1km sections: SS2-5 CHUI LODGE
km sinuosity straightness route elevationPlot convexityProfile
1 0.15056357 0.7316930
2 0.09801618 0.8581649
3 0.05502650 0.5824365
4 0.08890118 0.5202702
5 0.09303376 0.9362154
6 0.02779401 0.9327263
7 0.13585304 0.5351218
8 0.04543020 0.7231313
9 0.09024145 0.7461358
10 0.07061086 0.7255037
11 0.11985379 0.5625446
12 0.07159245 0.7931829
13 0.08228678 0.7530826
14 0.15624660 0.8748839