403:
415:
502:
633:
986:
1033:
1025:
671:
283:
974:
within the same exit zone. For example, State
Highway 1 (Southern Motorway) has an Exit 429A (Symonds St), Exit 429B (Wellesley St) and Exit 429C (Port). Instead of replacing existing ramp and link signs, the exit numbers were added as supplementary information. Thus drivers can navigate either by exit number or name. Exit numbers are only used for exits that may be used by all vehicle types. Bus- or emergency vehicle-only exits would not be numbered.
514:
716:
66:
621:
299:
168:
311:
25:
542:
directional suffixes, just as with sequential numbers. Distance based numbering is the norm for most highways in the United States and Canada. Many jurisdictions in North
America began switching to distance based in the 1980s, with some projects still ongoing currently to convert towards a distance based system. These are further complemented by mile markers or KM markers.
679:
example
Junction 1 being referred to as "J1"; as such this abbreviated term has entered popular usage. If a junction is newly constructed to between two existing junctions, it is normally allocated the number of the lower of the two junctions, with the letter "A" attached (and so on). For example, a new junction opened between Junctions 3 and 4 would become Junction 3A.
431:, some new exits got the suffix C, so that if it had or acquired separate exits for the two directions, they would be 15CA and 15CB rather than 15AB. There are also occurrences of this happening on the New Jersey Turnpike; the original interchanges opened in 1951, with newer exits as recently as 1982. On the
628:
Most
European countries use sequential numbering schemes. Spain uses distance-based numbering on its Autovias, but not on its Autopistas. Austria, the Czech Republic, Hungary and Slovakia use distance-based schemes. A number of European countries (including the Netherlands, Belgium and France) do not
1043:
uses distance-based exit numbers in kilometers. If two exits are located within the same kilometer mark, the Roman letters are appended to differentiate the exits. Taiwan did experiment with sequential exit numbers with
National Freeway No. 1 for a couple of years, but abandoned the experiment in
550:
exit number can be determined by rounding up, rounding down, or rounding to the nearest integer. Many jurisdictions prefer to avoid an exit 0. To this end, the numbers are either rounded up to get the exit number, or any exit that would get the number 0 is instead numbered 1. Examples of highways
973:
There is no exit zero. If there is an exit within 1.499 km of the origin, Exit 1 is used. Exit 2 would be between 1.500 and 2.499 km of the origin. Subsequent 'exit zones' are at 1 km intervals. Letter suffixes are added at multi-exit interchanges, or where two or more exits exist
686:
in 1990, however due to the short length of Irish motorways until the early 2000s they were normally ignored by the general public. They are beginning to come into popular usage now, and since 2005 have been given greater prominence on road signs. With the development of the inter-urban motorway
678:
Both the United
Kingdom and the Republic of Ireland use sequential numbering systems, with the junction number indicated by a white number in a black square in the corner of signs. In the United Kingdom they are frequently referenced in the media as the number with "J" on front of it, with for
541:
in the 1960s. In this system, the number of miles from the beginning of the highway to the exit is used for the exit number. If two exits would end up with the same number, the numbers are sometimes modified slightly; unless there are too many in proximity, and exits are given sequential or
944:
The main expressway system uses sequential numbering; Metropolitan
Expressway systems also use sequential junction numbering, usually appended with the expressway number expressed thus: 5-1; 5-2, etc. There are multiple toll expressways not operated by the major national syndicates or the
723:
Of the provinces that have numbered exit signs on their highways, the majority either use distance based or have switched to using distance based systems. Some highways may also supplement their roads wilth kilometre-based distance markers at specific intervals on the side of the road.
993:
Metric distance-based numbers are used on the tollways radiating from Manila. Supplemental "A" and "B" designations are appended to signage at the ends of slip roads. Expressway signage, exit number signs, and kilometer markers mostly replicate
Australian and American freeway signage.
880:
where an interchange is opened "before" Exit 1.) In some instances, exit numbers are skipped, usually as the result of new sections of 4-lane divided highway opening while the old arterial highway is downgraded to a collector highway. On
Highway 104, exits 2, 9, 14, 16, 28 and 34 are
830:
has recently switched to using the distance based system. This started with the Regina Bypass project where distance based exits are now used on the freeway. It uses distance-based exit numbers along with exits lettered A-B for interchanges with multiple exits. On a section of
402:
501:
629:
number motorway intersections, apparently because one cannot "exit" the motorway there. Countries like
Germany and Switzerland have attributed numbers to their exit, but instead of the usual exit symbol, they are given a specific interchange symbol.
414:
575:
starts at 20 because it was expected that the southern end of the highway would extend to downtown Toronto (which was never built). Another reason to use a higher number is that the freeway is branching off from another freeway. An example is
699:
has adopted a numbering scheme for the inter-urban roads that will see Junction 1 being designated as that road's junction with the M50 in most cases. This has meant renumbering of existing junctions on some motorways, most notably the
757:
has the second oldest system; it began sequential but switched to mile-based (distance) junction numbering before the Canadian metric conversion in the mid-1970s. Unlike Ontario, Quebec uses cardinal directions for multiple exits:
1047:
Prior to 2006, Taiwan exit signs were generally near replicas of their US counterparts. However, the exit signs now not only indicate the distance number, but they also display the Chinese code-name for the interchange.
611:
Victoria and New South Wales have partially implemented sequential exit numbering on selected urban motorways. For instance, the M31 Hume Motorway in New South Wales has exit numbering between Prestons and Campbelltown.
917:
does not use exit numbers. The only limited access highway runs between New Haven and North River (part of the Trans Canada Highway), which features two interchanges, both unnumbered. The Albany Corner interchange near
570:
Some freeways' exit number starts from an advanced number (i.e. higher than 1). One reason for starting with a number higher than 1 is that the maintaining agency expects that the highway will be extended. For example,
545:
An exit can be numbered by where the exit in the direction of increased mileage leaves the freeway, or by where the road that the exit serves crosses the freeway (which is occasionally ambiguous). From this number, the
422:
Sequential exit numbering usually begins with exit 1 at the beginning of the road; each subsequent exit is given the next number. Letter suffixes are commonly used when new exits are added. For example, on the
608:
Distance-based exit numbering is used in Queensland, although there is not a consistent approach for defining the datum. For example, exit numbers may increase from south to north or north to south.
953:
New Zealand began introducing exit numbers in the Auckland region in 2005. It uses a distance-based numbering system. The distance to the exit is measured from the origin of the highway. That is:
537:) exit numbers. The first mile-based system known was implemented on the Garden State Parkway in New Jersey in the late 1950s. Michigan also implemented mile-based junction numbers on
591:, distance-based numbers are by kilometer rather than mile. A number of highways have kilometer-based exit numbers, even in areas that typically use miles; an example of this is with
843:, letters "A", "B", and "C" are used sequentially as "exit letters" instead, making Saskatchewan mainly a distanced-based system that utilizes a bit of sequential lettering as well.
707:
The United Kingdom uses sequential numbering in part because motorway signs use miles rather than kilometres; there are no formal plans to metricate the country's motorway system.
427:, an exit was added between 21 and 22, and was given the number 21A. Subsequently, a new exit was added between 21 and 21A, leading to the sequence 21 – 21B – 21A – 22. In
1002:
Uses distance based numbering (in kilometers) on main motorways. Letter suffixes are added at multi-exit interchanges, an example being the Buccleuch interchange in
936:
Exit numbers were introduced to major Hong Kong routes in 2004, in conjunction with the re-organization of the route numbers. A sequential numbering scheme is used.
359:
were given sequential numbers, one per intersection (both boulevards no longer have exit numbers as of 2011). A milder version of this has been recently used on the
333:. It is usually marked on the same sign as the destinations of the exit. In some countries, such as the United States and Canada, it is also marked on a sign in the
379:, where all exits are numbered though all except one are at-grade intersections. Some other intersections on Highway 19 outside Nanaimo are also given numbers.
735:; it switched to mile-based (distance) numbering before Canada went metric. Most short freeways do not have exit numbers, and until about 2000 (with Highways
704:. Non-motorway dual carriageways forming part of major inter-urban roads also have junction numbers, however only grade-separated interchanges are numbered.
1009:
Exit numbers are reset on the borders of the provinces as they were until 1994. This means that exit numbering may change in the middle of a province.
189:
182:
368:
931:
418:
The New Jersey Turnpike at exit 8A several miles north of exit 8. This interchange was opened in the 1970s, which is why the suffix exists.
1092:
887:
uses sequential numbering for exit signs. Controlled access freeways in the province only exist around the St John's metropolitan area.
1126:
1096:
1201:
919:
824:. In 2006, Alberta started building roadside kilometre markers in a few highways. Spacing is typically every four kilometres.
784:
uses distance-based exit numbers on its freeways. Some highways, such as Highway 91, have kilometre marker signs on the side.
486:
363:, also in New York, where only the major intersections are numbered (possibly to match the planned exits on the cancelled
232:
130:
204:
102:
989:
Exit gore sign in the Philippines. Notice its resemblance to the Australian exit number sign (only used in Queensland).
478:
1174:
1057:
387:
269:
251:
149:
52:
294:. In this case, mile-based exits 111A and 111B had been sequential exits 53CA and 53CB, as the 'OLD 53CA' tab shows.
1117:
211:
109:
1242:
1150:
1118:
1088:
556:
87:
218:
116:
83:
38:
376:
682:
In the Republic of Ireland, junction numbers have existed since the opening of the first section of the
200:
98:
1122:
731:
has the oldest exit number system, having started posting exit numbers sequentially in the 1960s along
581:
577:
552:
849:
originally started out using sequential numbering but has switched to using distance based exit signs.
908:
884:
858:
747:), incomplete freeways also did not have exit numbers. Interchanges with multiple exits are lettered
688:
538:
482:
471:
444:
372:
655:
Italy uses sequential numbering on the ring roads for some cities, including the ring road of Rome (
696:
564:
490:
455:
440:
868:
also numbers level junctions on designated express highways. Multiple exits at an interchange use
454:
Some sequential exits are renumbered (remaining sequential) due to added exits. For instance, the
1232:
832:
637:
560:
352:
291:
178:
76:
751:
On some highways, Ontario uses KM markers on the side, such as the 401 in Northumberland County.
1237:
683:
667:
by number, and published same on toll tickets; though these may not have been posted on signs.
485:, uses letters (without numbers) for its exits; it has many exits in a short distance, and the
424:
394:
and briefly described how Iowa had included milepost references near interchanges on the map.
900:
840:
701:
914:
836:
821:
518:
632:
8:
1012:
One exception to the usual distance based numbering is the southern portion of the M4 in
744:
732:
664:
572:
407:
225:
123:
1205:
1068:
813:
791:
740:
736:
645:
448:
436:
364:
957:
State Highway 1 (Northern and Southern Motorways) measured from the origin of SH1 at
809:
805:
795:
641:
432:
360:
1091:
allows exits that are numbered "0", they do not require its use. For example, the
781:
459:
356:
317:
is the only place in the United States that uses Spanish like the "Salida 5B" sign.
44:
892:
506:
463:
804:
has the newest exit number system. The province started posting exit numbers on
1032:
985:
302:
On a road with distance-based exit numbering, the exit number (shown here on a
1226:
963:
State Highway 16 (Northwestern Motorway) measured from the origin at the Port
846:
592:
588:
383:
326:
945:
Metropolitan Expressway Authorities that have no junction numbering scheme.
1024:
1003:
827:
817:
692:
525:
As more highways were built, states and countries began to experiment with
386:
maps include a brief explanation of the exit numbering system on an inset.
287:
462:
was renumbered so that its northernmost exit, 27, became 30. However, the
1131:(Revised 2009 ed.). Washington, D.C.: Federal Highway Administration
966:
State Highway 18 (Upper Harbour Motorway) measured from the origin at SH1
958:
865:
854:
467:
351:
use exit numbers. An extreme case of this is in New York City, where the
334:
314:
303:
1121:& National Committee on Uniform Traffic Control Devices (May 2012).
969:
State Highway 20 (Southwestern Motorway) measured from the origin at SH1
282:
670:
341:
513:
391:
715:
167:
65:
787:
298:
620:
509:(I-495) circling Washington, D.C., which is located at milepost 40
310:
904:
896:
801:
728:
547:
428:
390:
maps from the 1970s and 1990s included a picture or drawing of a
348:
330:
794:
has three numbered exits. Exit numbers were first posted on the
1040:
1013:
754:
474:
interchange is numbered 27 in Connecticut and 30 in New York.
649:
1099:
both have chosen not to incorporate these exits statewide.
340:
Exit numbers typically reset at political borders such as
977:
Exit numbers are not used outside the Auckland region.
808:
in 2004, and has since extended the system to Highways
636:
Exit 10 at the intersection of the highway 20 on the
493:'s lowest numbers (mile-based) are in Atlantic City.
624:
Exit numbers in most countries in Continental Europe
778:(with a hyphen) to avoid confusion with the number.
466:, which continued the Hutchinson's exit numbers in
90:. Unsourced material may be challenged and removed.
674:A UK motorway sign showing a junction number (25)
567:on the Montana side of the Idaho–Montana border.
1224:
932:Hong Kong Strategic Route and Exit Number System
663:). At one time, it referred to junctions on the
306:sign) matches a nearby mile or kilometer marker.
1175:"Frequently Asked Questions (Exit Renumbering)"
410:at exit 8. This interchange was opened in 1951.
1151:"Statewide Exit Renumbering Project Details"
1123:"Section 2E.31: Interchange Exit Numbering"
563:, along the West Virginia–Ohio border, and
53:Learn how and when to remove these messages
1093:Massachusetts Department of Transportation
598:
1128:Manual on Uniform Traffic Control Devices
496:
489:may have wanted to avoid numbers, as the
270:Learn how and when to remove this message
252:Learn how and when to remove this message
150:Learn how and when to remove this message
1097:Connecticut Department of Transportation
1031:
1023:
984:
922:is the only other grade-separated exit.
714:
669:
631:
619:
512:
500:
413:
401:
382:As a means of educating motorists, some
309:
297:
281:
1113:
1111:
774:("ouest"); an example of the latter is
1225:
188:Please improve this article by adding
903:use no exit numbers, as there are no
487:South Jersey Transportation Authority
470:, was not renumbered. This means the
397:
1108:
853:Sequential numbers are used only in
790:has the fewest posted exit numbers.
719:An exit number on a Québec Autoroute
161:
88:adding citations to reliable sources
59:
18:
1016:, which uses sequential numbering.
13:
517:An exit sign (kilometer-based) on
479:Atlantic City-Brigantine Connector
16:Number assigned to a road junction
14:
1254:
1058:Exit numbers in the United States
34:This article has multiple issues.
1051:
166:
64:
23:
997:
75:needs additional citations for
42:or discuss these issues on the
1194:
1167:
1143:
1119:Federal Highway Administration
1081:
1028:Taiwan exit sign prior to 2006
980:
948:
367:freeway). Another case is the
1:
1074:
443:). There is also an exit 8A (
190:secondary or tertiary sources
925:
603:
595:in the US state of Arizona.
7:
1062:
10:
1259:
1055:
929:
582:British Columbia Highway 1
578:British Columbia Highway 5
553:British Columbia Highway 1
435:, there is an exit 12B-C (
325:is a number assigned to a
1019:
885:Newfoundland and Labrador
876:. (Nova Scotia also uses
859:Newfoundland and Labrador
710:
689:National Development Plan
615:
483:Atlantic City, New Jersey
373:Nanaimo, British Columbia
329:, usually an exit from a
1036:current Taiwan exit sign
939:
697:National Roads Authority
491:Atlantic City Expressway
456:Hutchinson River Parkway
599:Exit numbers by country
561:Wheeling, West Virginia
292:Volusia County, Florida
1243:Geopositioning markers
1037:
1029:
990:
720:
675:
652:
625:
587:In areas that use the
522:
510:
497:Distance-based numbers
425:New York State Thruway
419:
411:
318:
307:
295:
177:relies excessively on
1202:"Autostrada Del Sole"
1035:
1027:
988:
930:Further information:
901:Northwest Territories
718:
673:
635:
623:
580:, which branches off
516:
504:
417:
405:
313:
301:
285:
915:Prince Edward Island
911:in the territories.
519:Quebec Autoroute 640
84:improve this article
891:The territories of
665:Autostrada del Sole
584:and starts at 170.
573:Ontario Highway 400
551:with an exit 0 are
439:), as well as 12A (
408:New Jersey Turnpike
1069:Linear referencing
1038:
1030:
991:
721:
687:network under the
676:
653:
626:
523:
511:
505:Exit 40 along the
420:
412:
398:Sequential numbers
319:
308:
296:
796:Perimeter Highway
555:on the mainland,
447:) and an exit 8 (
433:Baltimore Beltway
361:West Side Highway
280:
279:
272:
262:
261:
254:
236:
160:
159:
152:
134:
57:
1250:
1217:
1216:
1214:
1213:
1204:. Archived from
1198:
1192:
1191:
1189:
1188:
1179:
1171:
1165:
1164:
1162:
1161:
1147:
1141:
1140:
1138:
1136:
1115:
1100:
1085:
782:British Columbia
357:Linden Boulevard
286:Exit numbers on
275:
268:
257:
250:
246:
243:
237:
235:
194:
170:
162:
155:
148:
144:
141:
135:
133:
92:
68:
60:
49:
27:
26:
19:
1258:
1257:
1253:
1252:
1251:
1249:
1248:
1247:
1223:
1222:
1221:
1220:
1211:
1209:
1200:
1199:
1195:
1186:
1184:
1177:
1173:
1172:
1168:
1159:
1157:
1149:
1148:
1144:
1134:
1132:
1116:
1109:
1104:
1103:
1086:
1082:
1077:
1065:
1060:
1054:
1022:
1000:
983:
951:
942:
934:
928:
920:Borden-Carleton
713:
618:
606:
601:
535:kilometer-based
507:Capital Beltway
499:
464:Merritt Parkway
400:
369:Nanaimo Parkway
353:Grand Concourse
276:
265:
264:
263:
258:
247:
241:
238:
195:
193:
187:
183:primary sources
171:
156:
145:
139:
136:
93:
91:
81:
69:
28:
24:
17:
12:
11:
5:
1256:
1246:
1245:
1240:
1235:
1233:Road transport
1219:
1218:
1193:
1166:
1142:
1106:
1105:
1102:
1101:
1079:
1078:
1076:
1073:
1072:
1071:
1064:
1061:
1056:Main article:
1053:
1050:
1021:
1018:
999:
996:
982:
979:
971:
970:
967:
964:
961:
950:
947:
941:
938:
927:
924:
889:
888:
882:
851:
850:
844:
825:
799:
785:
779:
752:
712:
709:
617:
614:
605:
602:
600:
597:
527:distance-based
498:
495:
399:
396:
278:
277:
260:
259:
174:
172:
165:
158:
157:
72:
70:
63:
58:
32:
31:
29:
22:
15:
9:
6:
4:
3:
2:
1255:
1244:
1241:
1239:
1238:Traffic signs
1236:
1234:
1231:
1230:
1228:
1208:on 2006-05-05
1207:
1203:
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1183:
1176:
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1156:
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1130:
1129:
1124:
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1052:United States
1049:
1045:
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1034:
1026:
1017:
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1010:
1007:
1005:
995:
987:
978:
975:
968:
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954:
946:
937:
933:
923:
921:
916:
912:
910:
906:
902:
898:
894:
886:
883:
879:
875:
871:
867:
864:
863:
862:
860:
856:
848:
847:New Brunswick
845:
842:
838:
834:
829:
826:
823:
819:
815:
811:
807:
803:
800:
797:
793:
789:
786:
783:
780:
777:
773:
770:("sud"), and
769:
765:
761:
756:
753:
750:
746:
742:
738:
734:
730:
727:
726:
725:
717:
708:
705:
703:
698:
694:
690:
685:
680:
672:
668:
666:
662:
659:) and Milan (
658:
651:
650:Oulu, Finland
647:
643:
639:
634:
630:
622:
613:
609:
596:
594:
593:Interstate 19
590:
589:metric system
585:
583:
579:
574:
568:
566:
565:Interstate 90
562:
558:
557:Interstate 70
554:
549:
543:
540:
539:Interstate 94
536:
532:
528:
520:
515:
508:
503:
494:
492:
488:
484:
480:
475:
473:
469:
465:
461:
457:
452:
450:
446:
442:
438:
434:
430:
426:
416:
409:
404:
395:
393:
389:
385:
384:state highway
380:
378:
374:
370:
366:
362:
358:
354:
350:
345:
343:
338:
336:
332:
328:
327:road junction
324:
316:
312:
305:
300:
293:
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274:
271:
256:
253:
245:
234:
231:
227:
224:
220:
217:
213:
210:
206:
203: –
202:
201:"Exit number"
198:
197:Find sources:
191:
185:
184:
180:
175:This article
173:
169:
164:
163:
154:
151:
143:
132:
129:
125:
122:
118:
115:
111:
108:
104:
101: –
100:
99:"Exit number"
96:
95:Find sources:
89:
85:
79:
78:
73:This article
71:
67:
62:
61:
56:
54:
47:
46:
41:
40:
35:
30:
21:
20:
1210:. Retrieved
1206:the original
1196:
1185:. Retrieved
1181:
1169:
1158:. Retrieved
1154:
1145:
1133:. Retrieved
1127:
1083:
1046:
1039:
1011:
1008:
1004:Johannesburg
1001:
998:South Africa
992:
976:
972:
952:
943:
935:
913:
890:
877:
873:
869:
852:
828:Saskatchewan
775:
771:
767:
763:
759:
748:
722:
706:
693:Transport 21
684:M50 motorway
681:
677:
660:
656:
654:
627:
610:
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586:
569:
544:
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530:
526:
524:
476:
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421:
381:
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981:Philippines
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866:Nova Scotia
855:Nova Scotia
733:Highway 401
702:M7 motorway
661:Tangenziali
468:Connecticut
375:, carrying
323:exit number
315:Puerto Rico
1227:Categories
1212:2006-09-14
1187:2023-12-22
1160:2023-12-22
1087:While the
1075:References
833:Highway 11
766:("nord"),
531:mile-based
472:Route 120A
377:Highway 19
212:newspapers
179:references
110:newspapers
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926:Hong Kong
806:Highway 2
792:Highway 1
762:("est"),
638:highway 4
604:Australia
521:in Quebec
347:Some non-
45:talk page
1155:Mass.gov
1095:and the
1063:See also
905:freeways
881:skipped.
798:in 2001.
788:Manitoba
460:New York
392:milepost
388:Iowa DOT
349:freeways
897:Nunavut
841:Lumsden
802:Alberta
729:Ontario
548:integer
429:Florida
365:Westway
344:lines.
331:freeway
226:scholar
124:scholar
1182:CT.gov
1044:2004.
1041:Taiwan
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477:The
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