6 SS8-11 ELEMENETEITA STAGE 201

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

6.1 Stage Route Preview

Static map, significant corners highlighted:

6.2 Segmented Route

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

6.3 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 28.363874 125.6528 145.0000
2 1.00 32.997833 109.0981 145.0000
3 1.00 28.267234 127.3559 145.0000
4 1.00 28.240219 127.4778 145.0000
5 1.00 27.651798 130.1904 145.0000
6 1.00 28.749885 125.2179 145.0000
7 1.00 28.871255 124.6915 145.0000
8 1.00 33.182786 108.4900 145.0000
9 1.00 27.542316 130.7080 145.0000
10 1.00 25.257572 142.5315 145.0000
11 1.00 32.945104 109.2727 145.0000
12 1.00 30.291364 118.8458 145.0000
13 1.00 32.970650 109.1880 145.0000
14 1.00 28.294362 127.2338 144.9927
15 1.00 29.101932 123.7031 145.0000
16 0.19 5.108902 133.8840 145.0000

Anticipated stage time: 7m 27.8s

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):

6.4 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.

6.4.1 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 6.1: Five longest straights (m)
Distance into stage (km) Straight length (m)
12.55 300
11.38 490
10.56 440
5.85 450
5.49 350

6.4.2 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-7)Stage segmented into 1km sections: SS8-11 ELEMENETEITA STAGE 201
km sinuosity straightness route elevationPlot convexityProfile
1 0.03084190 0.9010450
2 0.05759694 0.8000168
3 0.10597717 0.8722090
4 0.04912037 0.9681863
5 0.10706815 0.8626927
6 0.04923579 0.6194405
7 0.04560689 0.9885916
8 0.14483620 0.9758398
9 0.02806388 0.9832403
10 0.01706335 0.9834589
11 0.06494842 0.6106563
12 0.04559776 0.7747386
13 0.06590886 0.8296253
14 0.03428100 0.9640735
15 0.04882631 0.9235727
16 0.02082026 0.9985457