Overlap averages

hotdogPi · February 10, 2015, 04:51:49 PM

For a particular route, average the number of routes it is overlapped with throughout its entire length. State borders do NOT matter.

Simple example: I-393 is entirely overlapped with US 202 [1.00] and almost entirely overlapped with US 4 [.95], so its overlap average is 1.95.

More complex example: ME 100 (140 miles):
US 302 [.02]
ME 26 [.09]
US 202/ME 4 [2*.12]
US 202/ME 11 [2*.22]
US 202/US 201 [2*.01]
US 201 [.14]
ME 11 [.19]
US 2/ME 7 [2*.02]
US 2 [.16]

Overlap average of 1.34 (may not be quite exact).

Here are my two questions:
1. What route has the highest overlap average?
2. What is the longest route with an overlap average of at least 1?

Even if it doesn't fit either of these questions, you can still post the numbers you have found for any route. You can go outside the United States.

Want list: US 1, I-25, US 202, I-465

NE2 · February 10, 2015, 05:13:01 PM

This is actually a reasonable concept, not pure trivia.

It'll be easier to calculate this way: add the mileage of each overlap and divide by the total mileage. So for US 23 (FL), not counting unsigned 'inventory' state roads:
*US 17 0.84
*SR 228 0.84
*US 1 37.656-3.820=33.836
*US 301 (using US 1 mileage) 545.03-527.14=17.89
total 53.406
length 37.656
average 1.42 (if you count unsigned state roads it's 2.42)

pianocello · February 10, 2015, 08:48:13 PM

I-465 is 52.79 miles long.

Its overlaps with:
I-74: 32.67 miles
US-31: 24.72
US-36: 24.65
US-40: 19.29
US-52: 22.36
US-421: 21.91
IN-37: 20.59
IN-67: 20.25

That averages out to be a whopping 3.53. Interestingly enough, there's a good nine miles on the northwest side that isn't overlapped with anything.

GCrites · February 11, 2015, 11:20:39 PM

Is overlap different from multiplex at all?

NE2 · February 11, 2015, 11:24:10 PM

Quote from: GCrites80s on February 11, 2015, 11:20:39 PM
Is overlap different from multiplex at all?

Not when dealing with highways.

sbeaver44 · February 12, 2015, 09:18:17 AM

I-76 (Eastern) - 434.87 mi total

US 224 - 18.62 miles
I-77 - 3.12 miles
I-80 - 0.25 miles?
I-70 - 85.9 miles
US 1 - 0.72 miles
US 30 - 0.31 miles

Total overlap = 108.92 miles
Overlap factor = 0.25

US Route 22 - 647.45 miles

US 27 - 0.17 miles
US 52 - 0.17 miles
US 127 - 0.17 miles
US 42 - 0.33 miles
Ohio 3 - 70.38 miles
Ohio 561 - 0.10 miles
Ohio 126 - 0.27 miles
Ohio 123 - 1.73 miles
Ohio 73 - 3.43 miles
US 62 - 0.63 miles
Ohio 56 - 2.2 miles
Ohio 188 - 1.6 miles
Ohio 37 - 3.6 miles
Ohio 93 - 9.2 miles
Ohio 60 - 0.3 miles
Ohio 146 - 0.3 miles
US 40 - 23.8 miles
Ohio 209 - 0.3 miles
Ohio 800 - 0.6 miles
US 250 - 1.0 miles
Ohio 151 - 1.2 miles
Ohio 7 - 0.9 miles
WV 2 - 0.2 miles
US 30 - 21.7 miles
I-376 - 24.3 miles
US 19 - 0.4 miles
US 19 Truck - 1.5 miles
US 119 - 12.5 miles
US 220 Bus - 1.3 miles
PA 655 - 1.4 miles
US 522 - 23.3 miles
US 322 - 54.5 miles
PA 343 - 0.8 miles
I-78 (PA)- 42.99 miles
I-78 (NJ)- 14.56 miles
NJ 173 - 1.05 miles
CR 523 - 0.19 miles

Total overlap - 323.07 miles
Overlap Factor = 0.50

SectorZ · February 12, 2015, 12:58:50 PM

Massachusetts, Interstates and US Routes -

Interstates 84, 90, 190, 290, 295, 395, 495 (0)

Interstate 91 (.056)
54.90 total miles
US 5 - .306
MA 2 - 2.741

Interstate 291 (0.649)
5.52 total miles
US 20 - 3.583

Interstate 391 (0.142)
5.160 total miles
MA 141 - 0.733
* As an aside, many things show 141 never joins I-391, anyone know for sure on this?

Interstate 93 (1.165)
46.25 total miles
US 1 - 18.603
MA 1A (unsigned) - 17.874
MA 3 - 11.090
MA 3A (unsigned) - 6.317

Interstate 95 (0.464)
90.82 total miles
US 1 - 2.576
US 3 - 1.688
MA 128 - 37.885

Interstate 195 (0.021)
39.33 miles
MA 24 - 0.840

US 1 (0.72)
86.2 total miles
I-93 - 18.603
I-95 - 2.576
MA 1A - 22.45
MA 3 - 11.090
MA 3A (unsigned) - 6.317
MA 129 - 1.0

US 3 (0.73)
35.70 total miles
I-95 - 1.688
MA 2 - 4.4
MA 2A - 1.7
MA 3A - 16.3
MA 16 - 1.8
MA 60 - 0.1

US 5 (0.51)
53.46 total miles
I-91 - 0.306
MA 10 - 26.10
MA 116 - 0.90

US 6 (0.2)
118.0 total miles
MA 6A (Unsigned) - 18.4
MA 28 - 4.7
MA 138 - 0.3

US 7 (0.27)
53.90 total miles
US 20 - 7.405
MA 2 - 2.4
MA 9 - 0.4
MA 23 - 1.5
MA 41 - 1.0
MA 102 - 0.3
MA 183 - 1.4

US 20 (0.123)
153.44 total miles
I-291 - 3.583
US 202 - 0.252
US 7 - 7.405
MA 8 - 5.176
MA 10 - 0.252
MA 12 - 1.211
MA 32 - 0.981

US 44 (0.03)
38.3 total miles
MA 3 - 1.2
MA 140 - 0.1

US 202 (0.37)
79.6 total miles
US 5 - 1.2
US 20 - 0.252
MA 2 - 8.3
MA 2A - 1.3
MA 10 - 14.5
MA 12 - 0.2
MA 21 - 1.0
MA 57 - 0.6
MA 68 - 1.4
MA 122 - 0.9

Feel free to check my math and the 391 thing. The math geek in me loved this.

PHLBOS · February 12, 2015, 05:54:39 PM

Quote from: Cjzani on February 12, 2015, 12:58:50 PM
Massachusetts, Interstates and US Routes -

Interstates 84, 90, 190, 290, 295, 391, 395, ~~495~~ (0)
...
Interstate 391 (0.142)
5.160 total miles
MA 141 - 0.733[/s
* As an aside, many things show 141 never joins I-391, anyone know for sure on this?

FTFY

I-391 and MA 141 do not overlap, Google Maps is incorrect.

OTOH there is an I-495/MA 140 overlap in Mansfield even though 141 utilized the C/D roads between Exits 11 & 12 (0.038 miles per Wiki).

Quote from: Cjzani on February 12, 2015, 12:58:50 PM
Interstate 95 (0.464)
90.82 total miles
US 1 - 2.576
US 3 - 1.688
MA 128 - 37.885

The first 128 mile marker north of the I-95 split is Mile 37.2.

yakra · March 07, 2015, 12:42:10 PM

Quote from: 1 on February 10, 2015, 04:51:49 PM
Simple example: I-393 is entirely overlapped with US 202 [1.00] and almost entirely overlapped with US 4 [.95], so its overlap average is 1.95.

I believe I-393 doesn't actually extend west from I-93, so its overlap average would be an even 2.0.

QuoteMore complex example: ME 100 (140 miles):
US 302 [.02]
ME 26 [.09]
US 202/ME 4 [2*.12]
US 202/ME 11 [2*.22]
US 202/US 201 [2*.01]
US 201 [.14]
ME 11 [.19]
US 2/ME 7 [2*.02]
US 2 [.16]

Overlap average of 1.34 (may not be quite exact).

Using wibbly-wobbly mileage from the Clinched Highway Mapping project:

More complex example: ME 100 (139.92 miles):
US302   2.27 mi
ME9   0.09 mi
ME26   13.29 mi
US202/ME4/26   3*0.04=0.12 mi
US202/ME4   2*15.31=30.62 mi
US202/ME4/11   3*0.68=2.04 mi
US202/ME11   2*26.55=53.1 mi
ME135   0.13 mi
US202/ME11/17   3*4.31=12.93 mi
US201/202/ME17   3*0.69=2.07 mi
US201/202/ME9   3*0.59=1.77 mi
US201   18.11 mi
ME137Bus   0.87 mi
US201/ME11   2*3.11=6.22 mi
ME11/139   2*2.24=4.48 mi
ME11   23.93 mi
US2/ME7   2*3.44=6.88 mi
US2   24.14 mi

203.06 total overlap miles / 139.92 = 1.45

yakra · March 07, 2015, 03:12:09 PM

ME16: 91.83 PlexMiles / 186.3 total = 0.492
ME4   6.3 mi
ME27   22.6 mi
US201A/8   2*6.73=13.46 mi
US201   0.62 mi
ME15   11.66 mi
ME150   0.38 mi
ME6   34.55 mi
ME11   2.26 mi

ME9: 141.78 PlexMiles / 286.7 total = 0.495
ME4   0.46 mi
ME109   2.16 mi
US1   1.88 mi
ME208   5.42 mi
ME111   0.12 mi
US1   5.73 mi
ME22   1.57 mi
US302/ME100   2*0.09=0.18 mi
ME115   0.26 mi
ME136   0.38 mi
ME125   0.29 mi
ME196   0.82 mi
ME126   20.05 mi
US201   0.29 mi
ME27   0.22 mi
ME17   0.49 mi
US201/202/ME100   3*0.58=1.74 mi
US202   59.94 mi
ME3   10.72 mi
ME32   1.27 mi
ME137   7.32 mi
ME139   0.18 mi
ME220   2.99 mi
US1A   5.5 mi
US202   0.85 mi
ME15Bus   0.19 mi
ME178   3.96 mi
US1   6.8 mi

ME5: 60.91 PlexMiles / 115.86 total = 0.526
US1   0.91 mi
ME112   0.38 mi
US202/ME4   2*1.82=3.64 mi
ME11   0.14 mi
ME25   0.67 mi
ME117   6.06 mi
ME113   17.94 mi
US302   0.47 mi
ME35   12.62 mi
US2   12.33 mi
ME26   5.75 mi

ME3: 71.51 PlexMiles / 119.18 total = 0.600
US202/ME9   2*10.71=21.42 mi
ME32   1.27 mi
ME131   0.08 mi
US1   38.8 mi
ME15   4.41 mi
ME198   5.53 mi

ME11: 226.43 PlexMiles / 286.7 total = 0.790
US202   12.38 mi
ME109   6.14 mi
ME5   0.14 mi
ME113   1.46 mi
ME107   1.79 mi
ME114   9.19 mi
US302   0.47 mi
US302/35   2*0.91=1.82 mi
ME121   8.77 mi
US202/ME4/100   3*0.69=2.07 mi
US202/ME100   2*26.54=53.08 mi
ME135   0.13 mi
US202/ME17/100   3*7.55=22.65 mi
ME8/27   2*11.77=23.54 mi
ME8   3.11 mi
ME137   3.69 mi
ME104   1.34 mi
ME137Bus   0.73 mi
US201/ME100   2*3.11=6.22 mi
ME100/139   2*2.24=4.48 mi
ME100   23.93 mi
ME7   6.16 mi
ME43   15.82 mi
ME15   1.88 mi
ME6/16   2*2.27=4.54 mi
ME157   10.46 mi
ME159   0.44 mi

ME4: 132.91 PlexMiles / 167.1 total = 0.795
ME236   0.2 mi
ME9   0.47 mi
US202   36.34 mi
ME5   1.82 mi
ME117   1.73 mi
ME25   0.67 mi
US202/ME115   2*15.79=31.58 mi
US202/ME26A/115   3*0.45=1.35 mi
US202/ME26/100   3*0.05=0.15 mi
US202/ME100   2*15.3=30.6 mi
US202/ME11/100   3*0.69=2.07 mi
ME108   1 mi
ME17   5.74 mi
US2   7.75 mi
ME43   0.8 mi
ME27   3.03 mi
ME142   1.31 mi
ME16   6.3 mi

ME6: 169.78 PlexMiles / 205.31 total = 0.827
US201   16.3 mi
ME15   80.82 mi
ME16   34.55 mi
ME150   0.38 mi
ME11   2.26 mi
ME155   12.42 mi
ME116   10.97 mi
US2   12.08 mi

ME8: 59.02 PlexMiles / 51.56 total = 1.145
ME11/27   2*11.77=23.54 mi
ME11   3.11 mi
ME137   3.21 mi
US2/201A   2*0.4=0.8 mi
US201A   20.67 mi
ME43/148   2*0.48=0.96 mi
ME16   6.73 mi

US201A: 34.25 PlexMiles / 26.16 total = 1.309
US2   5.49 mi
ME8   21.07 mi
ME43/148   2*0.48=0.96 mi
ME16   6.73 mi

ME US202: 263.02 PlexMiles / 170.39 total = 1.544
ME11   12.38 mi
ME4A   3.83 mi
ME4   36.34 mi
ME5   1.83 mi
ME117   1.74 mi
ME25   0.67 mi
ME4/115   2*3.37=6.74 mi
ME4/26A/115   3*0.45=1.35 mi
ME4/26/100   3*0.05=0.15 mi
ME4/100   2*15.31=30.62 mi
ME4/11/100   3*0.68=2.04 mi
ME11/100   2*26.54=53.08 mi
ME135   0.12 mi
ME11/17/100   3*7.55=22.65 mi
US201/ME17/100   3*0.7=2.1 mi
US201/ME9/100   3*0.59=1.77 mi
ME9   59.94 mi
ME3   10.72 mi
ME32   1.27 mi
ME137   7.33 mi
ME139   0.19 mi
ME220   2.98 mi
I-395/ME15   2*0.73=1.46 mi
US1A/ME9   2*0.86=1.72 mi

yakra · March 07, 2015, 04:33:14 PM

ME US202: 263.02 PlexMiles / 170.39 total = 1.544
(See my last post)

NH US202: 87.07 PlexMiles / 93.99 total = 0.926
NH124   0.08 mi
NH101   0.2 mi
NH123   5.6 mi
NH31   2.33 mi
NH9   22.79 mi
US3   0.77 mi
I-393/US4   2*4.46=8.92 mi
US4/NH9   2*16.76=33.52 mi
NH9   4.78 mi
NH107   1.94 mi
NH126   0.2 mi
NH16   2.4 mi
NH11   3.54 mi

MA US202: 28.76 PlexMiles / 78.29 total = 0.367
MA10   14.21 mi
MA57   0.61 mi
US20   0.27 mi
US5*   1.15 mi
MA21   1.02 mi
MA122   0.94 mi
MA2   8.3 mi
MA2A   0.73 mi
MA68   1.32 mi
MA12   0.21 mi
*only southbound US202 overlaps US5. But it's counted here, because CHM. Yeah.

CT US202: 41.64 PlexMiles / 74.08 total = 0.562
US6   3.51 mi
I-84/US6/7   3*3.9=11.7 mi
US7   1.09 mi
US7   5.4 mi
CT67   0.5 mi
CT63   0.04 mi
CT4   0.13 mi
US44   5.27 mi
CT10   13.91 mi
CT189   0.09 mi

NY US202: 38.85 PlexMiles / 53.78 total = 0.722
NY59   0.06 mi
US9W   10.14 mi
US6   4.78 mi
US9   0.74 mi
NY35   9.92 mi
NY118   4.3 mi
NY22   4.99 mi
US6   3.92 mi

NJ US202:
Counting 5xx series routes: 19.13 PlexMiles / 79.76 total = 0.240
Not counting 5xx series routes: 15.68 PlexMiles / 79.76 total = 0.197
NJ31   5.81 mi
US206   7.16 mi
CR512   0.27 mi
CR525   0.13 mi
CR511   3.05 mi
NJ23   2.71 mi

PA US202: 9.65 PlexMiles / 58.84 total = 0.164
US322   7.84 mi
PA263   1.81 mi

DE US202: 7.39 PlexMiles / 12.57 total = 0.588
DE141   1.66 mi
I-95   5.73 mi

US202 nationally:
Counting NJ 5xx series routes: 495.51 PlexMiles / 621.7 total = 0.797
Not counting NJ 5xx series routes: 492.06 PlexMiles / 621.7 total = 0.791

News:

Overlap averages