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121 · Union/Streeterville Express

Total headways: —

Bunching rate

Share of observed headways considered bunched

Excess wait (min)

Extra wait vs. schedule (frequent service only)

Headway CV

Spacing irregularity — 0 is perfectly even

Median scheduled headway

Typical planned spacing between buses on this route

Median actual headway

Typical spacing between buses on this route

Segment ranking

Worst segments

SegmentBunching rateHeadways
From Adams & Canal
To Union Station Transit Center
From Wacker (Upper) & Adams
To Adams & Canal
From McClurg & Huron
To McClurg & Ontario
From McClurg & Ontario
To Grand & McClurg
From Grand & McClurg
To Grand & Fairbanks/Columbus
From Grand & Fairbanks/Columbus
To Michigan (Lower) & Illinois
From Michigan (Lower) & Illinois
To Wacker (Lower) & Michigan
From Wacker (Lower) & Michigan
To Wacker (Upper) & Adams

Spatial view

Route segments

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

Trend by hour

Route 121 · bunching by hour

Peak risk: 5p (1.8%)
0%3%5%8%10%12a: no data12a1a: no data1a2a: no data2a3a: no data3a4a: no data4a5a: no data5a6a: no data6a7a: no data7a8a: no data8a9a: no data9a10a: no data10a11a: no data11a12p: no data12p1p: no data1p2p: 0.0%2p0.0%3p: 0.0%3p0.0%4p: 1.1%4p1.1%5p: 1.8%5p1.8%6p: 0.0%6p0.0%7p: no data7p8p: no data8p9p: no data9p10p: no data10p11p: no data11p