3 SS03 Loutraki

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 31.809759 112.04109 145.0000
2 1.00 31.281559 115.08378 145.0000
3 1.00 34.573333 104.12650 144.9707
4 1.00 34.157166 105.39516 144.8828
5 1.00 39.918835 90.18299 144.9756
6 1.00 33.581533 107.20178 144.8633
7 1.00 51.155861 70.37317 144.9817
8 1.00 43.811595 82.17003 142.8125
9 1.00 44.823938 80.31423 144.9999
10 1.00 43.821457 82.15154 144.9896
11 1.00 31.096427 115.76893 144.9999
12 1.00 33.030803 108.98918 144.9999
13 1.00 27.943915 128.82948 145.0000
14 1.00 28.499798 126.31668 144.9996
15 1.00 34.689453 103.77794 144.9683
16 1.00 35.941142 100.16376 145.0000
17 1.00 30.408482 118.38802 145.0000
18 1.00 33.643520 107.00426 145.0000
19 1.00 31.117028 115.69228 145.0000
20 0.31 7.944828 140.46874 145.0000

Anticipated stage time: 11m 23.3s

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):

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)
18.91 110
17.26 80
12.42 70
9.25 70
0.30 80

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-5)Stage segmented into 1km sections: SS03 Loutraki
km sinuosity straightness route elevationPlot convexityProfile
1 0.04426913 0.9072423
2 0.04200157 0.9315467
3 0.06085762 0.8819020
4 0.05418357 0.9109172
5 0.08056049 0.5302781
6 0.05002749 0.8859842
7 0.09387964 0.8968873
8 0.08254098 0.8139509
9 0.08735531 0.5947538
10 0.10365102 0.5648709
11 0.04755415 0.8066018
12 0.07943442 0.6628999
13 0.03153254 0.8472145
14 0.03189662 0.8411924
15 0.05441992 0.8060728
16 0.05705002 0.8101529
17 0.03974988 0.8808842