CTA performance

Bus Bunching Tracker

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20 · Madison

Total headways: 25,908

Bunching rate

3.7%

Share of observed headways considered bunched

Excess wait (min)

+10.3 min

Extra wait vs. schedule (frequent service only)

Headway CV

0.84

Spacing irregularity — 0 is perfectly even

Median scheduled headway

6.46

Typical planned spacing between buses on this route

Median actual headway

16.34

Typical spacing between buses on this route

Segment ranking

Worst segments

SegmentBunching rateHeadways
From Halsted & Madison
To Washington & Halsted
9.9%242
From Madison & Racine
To Madison & Aberdeen
9.8%244
From Washington & Jefferson
To Washington & Canal
8.6%233
From Madison & Ashland
To Madison & Laflin
8.3%240
From Madison & Kedzie
To Madison & Albany
7.1%238
From Madison & Lockwood
To Madison & Long
6.6%289
From Madison & Cicero
To Madison & Lamon
6.5%275
From Madison & Lamon
To Madison & Lavergne
6.5%277

Spatial view

Route segments

AM peak
Low (<10%)
Medium (10% - 20%)
High (20%+)
No data

Trend by hour

Route 20 · bunching by hour

Peak risk: 3p (12.7%)
0%3%6%10%13%12a: 2.2%12a2.2%1a: 3.1%1a3.1%2a: 0.0%2a0.0%3a: 0.2%3a0.2%4a: 2.5%4a2.5%5a: 0.5%5a0.5%6a: 2.3%6a2.3%7a: 3.3%7a3.3%8a: 3.2%8a3.2%9a: 4.6%9a4.6%10a: 6.9%10a6.9%11a: 5.3%11a5.3%12p: 3.8%12p3.8%1p: 6.3%1p6.3%2p: 9.2%2p9.2%3p: 12.7%3p12.7%4p: 12.1%4p12.1%5p: 10.6%5p10.6%6p: 4.3%6p4.3%7p: 6.8%7p6.8%8p: 5.5%8p5.5%9p: 3.9%9p3.9%10p: 0.0%10p0.0%11p: 0.0%11p0.0%