CTA performance

Bus Bunching Tracker

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146 · Inner Lake Shore/Michigan Express

Total headways: 16,577

Bunching rate

3.0%

Share of observed headways considered bunched

Excess wait (min)

+11.3 min

Extra wait vs. schedule (frequent service only)

Headway CV

0.75

Spacing irregularity — 0 is perfectly even

Median scheduled headway

9.31

Typical planned spacing between buses on this route

Median actual headway

20.42

Typical spacing between buses on this route

Segment ranking

Worst segments

SegmentBunching rateHeadways
From State & Polk
To State & 9th Street
7.8%204
From Roosevelt & Michigan/Indiana
To Soldier Field & Field Museum
6.7%195
From State & 11th Street
To Roosevelt & State
6.5%199
From State & 9th Street
To State & 11th Street
6.5%199
From Roosevelt & State
To Roosevelt & Michigan/Indiana
6.5%200
From Marine Drive & Leland
To Marine Drive & Lawrence
6.3%144
From Marine Drive & Bittersweet
To Marine Drive & Gordon Terrace
6.3%96
From Marine Drive & Wilson
To 4646 N Marine Drive
6.2%145

Spatial view

Route segments

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

Trend by hour

Route 146 · bunching by hour

Peak risk: 3p (10.9%)
0%3%5%8%11%12a: 0.0%12a0.0%1a: 0.0%1a0.0%2a: no data2a3a: 0.0%3a0.0%4a: 0.0%4a0.0%5a: 0.0%5a0.0%6a: 4.2%6a4.2%7a: 1.9%7a1.9%8a: 2.7%8a2.7%9a: 4.6%9a4.6%10a: 6.4%10a6.4%11a: 3.4%11a3.4%12p: 3.1%12p3.1%1p: 5.4%1p5.4%2p: 3.5%2p3.5%3p: 10.9%3p10.9%4p: 10.2%4p10.2%5p: 6.6%5p6.6%6p: 6.2%6p6.2%7p: 3.0%7p3.0%8p: 1.9%8p1.9%9p: 1.5%9p1.5%10p: 0.2%10p0.2%11p: 3.2%11p3.2%