8 SS10-13 Cabeceiras de Basto

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

8.1 Stage Route Preview

Static map, significant corners highlighted:

8.2 Segmented Route

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

8.3 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 37.83036 94.21006 145.0000
2 1.00 38.42588 93.68687 144.9536
3 1.00 32.88573 109.46998 145.0000
4 1.00 32.44242 110.96583 145.0000
5 1.00 35.12181 102.50042 145.0000
6 1.00 32.99606 109.10393 144.9995
7 1.00 43.28034 83.17864 144.9634
8 1.00 31.00160 116.12305 145.0000
9 1.00 34.50737 104.32554 144.9985
10 1.00 29.28456 122.93166 145.0000
11 1.00 37.17886 96.82921 144.9023
12 1.00 40.78696 88.26350 144.9979
13 1.00 36.57659 98.42361 144.9999
14 1.00 35.19299 102.29311 144.9968
15 1.00 31.04411 115.96403 144.9829
16 1.00 33.42652 107.69893 145.0000
17 1.00 33.33042 108.00944 144.9992
18 1.00 34.21745 105.20948 145.0000
19 1.00 31.88981 112.88873 144.9986
20 1.00 29.63321 121.48532 145.0000
21 1.00 32.02428 112.41470 145.0000
22 1.00 33.58172 107.20117 145.0000
23 0.21 12.02954 62.84532 145.0000

Anticipated stage time: 12m 48.7s

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):

8.4 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 delta signatures:

8.4.1 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:

Table 8.1: Five longest straights (m)
Distance into stage (km) Straight length (m)
18.98 310
14.93 190
9.40 180
3.85 250
0.07 210

8.4.2 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-9)Stage segmented into 1km sections: SS10-13 Cabeceiras de Basto
km sinuosity straightness route
1 0.09016632 0.6834178
2 0.07913960 0.6761979
3 0.06713232 0.7073187
4 0.05737474 0.8428502
5 0.08436696 0.7587793
6 0.07333754 0.9190274
7 0.09966600 0.5027571
8 0.04779352 0.8833318
9 0.06552174 0.5245075
10 0.04074744 0.9746896
11 0.06894735 0.9121839
12 0.08879051 0.7395292
13 0.08523359 0.7133190
14 0.07876896 0.7328209
15 0.05343690 0.8615827
16 0.06666178 0.7301487
17 0.06642153 0.6180707
18 0.06625382 0.7724580
19 0.05904150 0.7605323
20 0.06113441 0.9220705
21 0.06963450 0.9116521
22 0.06977201 0.7326977
23 0.12281283 0.7219948