5 SS4-7 Oserian

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

5.1 Stage Route Preview

Static map, significant corners highlighted:

5.2 Segmented Route

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

5.3 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 26.95503 132.22024 145.0000
2 1.00 31.74853 113.39108 145.0000
3 1.00 27.03234 133.17384 145.0000
4 1.00 34.42943 104.56170 144.9995
5 1.00 27.73011 129.82276 145.0000
6 1.00 33.31975 108.04404 145.0000
7 1.00 24.82759 145.00000 145.0000
8 1.00 26.31526 136.80278 145.0000
9 1.00 24.82759 145.00000 145.0000
10 1.00 48.43854 74.32098 145.0000
11 1.00 29.25900 123.03908 144.9999
12 1.00 37.37594 96.31864 145.0000
13 1.00 32.98586 109.13768 145.0000
14 1.00 30.19890 119.20966 145.0000
15 1.00 26.73108 134.67470 145.0000
16 1.00 24.82759 144.99995 145.0000
17 1.00 27.87403 129.15250 145.0000
18 1.00 28.64363 125.68240 145.0000
19 0.96 24.81297 139.28198 145.0000

Anticipated stage time: 9m 28.3s

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):

5.4 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.

5.4.1 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 5.1: Five longest straights (m)
Distance into stage (km) Straight length (m)
15.98 420
15.21 760
6.48 220
6.03 230
5.63 390

5.4.2 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-6)Stage segmented into 1km sections: SS4-7 Oserian
km sinuosity straightness route elevationPlot convexityProfile
1 0.049900826 0.8170847
2 0.065774326 0.4019945
3 0.040080376 0.8376417
4 0.065190069 0.7317650
5 0.054609460 0.8665558
6 0.063344842 0.5477075
7 0.003534327 0.9995743
8 0.029495236 0.8395527
9 0.030816859 0.9348854
10 0.136314632 0.6959184
11 0.036173503 0.9729485
12 0.083489421 0.8341896
13 0.069253493 0.6106196
14 0.050964402 0.9003874
15 0.026151473 0.9899052
16 0.002626636 0.9999425
17 0.046117118 0.6630107
18 0.049716789 0.9610125