4 SS3 Filigosu-Sa Conchedda 2

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

4.1 Stage Route Preview

Static map, significant corners highlighted:

4.2 Segmented Route

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

4.3 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 37.567145 94.87013 144.9999
2 1.00 31.876707 112.93513 144.9996
3 1.00 26.726612 134.69721 145.0000
4 1.00 27.768861 129.64162 144.9999
5 1.00 30.476326 118.12447 144.9999
6 1.00 28.362557 126.92791 145.0000
7 1.00 31.940815 112.70846 145.0000
8 1.00 33.497868 107.46953 144.9414
9 1.00 28.368061 126.90328 145.0000
10 1.00 28.467793 126.45869 145.0000
11 1.00 27.000853 133.32912 145.0000
12 1.00 28.566677 126.02096 145.0000
13 1.00 30.033364 119.86669 144.9994
14 1.00 29.269798 122.99367 145.0000
15 1.00 27.470744 131.04851 145.0000
16 1.00 30.147027 119.41476 145.0000
17 1.00 33.273552 108.19404 145.0000
18 1.00 32.241537 111.65721 145.0000
19 1.00 26.546773 135.60970 145.0000
20 1.00 31.815940 113.15083 145.0000
21 1.00 28.461370 126.48724 145.0000
22 1.00 28.608391 125.83721 145.0000
23 0.18 6.872808 94.28461 145.0000

Anticipated stage time: 11m 5.4s

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):

4.4 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.

4.4.1 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 4.1: Five longest straights (m)
Distance into stage (km) Straight length (m)
11.24 130
8.56 100
5.85 130
3.36 180
2.24 100

4.4.2 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: SS3 Filigosu-Sa Conchedda 2
km sinuosity straightness route elevationPlot convexityProfile
1 0.05672340 0.7895131
2 0.04419614 0.9008269
3 0.02131733 0.9036477
4 0.02744048 0.8943834
5 0.03957918 0.8946624
6 0.03030927 0.7420640
7 0.04703138 0.5989065
8 0.04898939 0.8146311
9 0.03401236 0.7155080
10 0.03729209 0.8397982
11 0.02428703 0.9410767
12 0.03268989 0.8517646
13 0.03825983 0.8138772
14 0.03552665 0.7569226
15 0.02652788 0.9164251
16 0.04353550 0.8394164
17 0.04740058 0.5024522
18 0.04937353 0.9359345