7 SS9-12 SOYSAMBU STAGE 2021 | Stage Route Review

7.1 Stage Route Preview

Static map, significant corners highlighted:

7.2 Segmented Route

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

7.3 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	35.63351	100.0182	145
2	1.00	33.26441	108.2238	145
3	1.00	28.62034	125.7847	145
4	1.00	32.72026	110.0236	145
5	1.00	32.64493	110.2775	145
6	1.00	28.66163	125.6035	145
7	1.00	28.50271	126.3038	145
8	1.00	30.19281	119.2337	145
9	1.00	26.70673	134.7975	145
10	1.00	28.94361	124.3798	145
11	1.00	30.59453	117.6681	145
12	1.00	31.25710	115.1738	145
13	1.00	27.41384	131.3205	145
14	1.00	32.89438	109.4412	145
15	1.00	33.94764	106.0457	145
16	1.00	33.05424	108.9119	145
17	1.00	31.02618	116.0310	145
18	1.00	28.20238	127.6488	145
19	1.00	35.29816	101.9883	145
20	1.00	30.99432	116.1503	145
21	0.62	20.85215	107.0393	145

Anticipated stage time: 10m 41.4s

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):

7.4 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.

7.4.1 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 7.1: Five longest straights (m)
Distance into stage (km)	Straight length (m)
12.30	380
10.05	720
9.77	270
8.55	530
2.78	370

7.4.2 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-8)Stage segmented into 1km sections: SS9-12 SOYSAMBU STAGE 2021
km	sinuosity	straightness
1	0.12484499	0.6460573
2	0.07766817	0.5637429
3	0.05237069	0.8266948
4	0.11971010	0.8334105
5	0.06948966	0.5633395
6	0.05508163	0.8059879
7	0.04574727	0.9008763
8	0.11101311	0.7781004
9	0.03753496	0.8653755
10	0.10577548	0.9851560
11	0.06111931	0.7314562
12	0.05385800	0.8751634
13	0.04116858	0.5958894
14	0.11769535	0.3845962
15	0.10970455	0.6803663
16	0.07658642	0.7113220
17	0.07049419	0.6534333
18	0.06286642	0.7727550
19	0.08951809	0.8154241
20	0.06492288	0.7841670
21	0.19565029	0.6476496