Singapore Changi airport (Singapore) NOTAM and informations WSSS SIN

Airport information, from map to hotels via aeronautical information. And the aeronautical weather for the pilots with current weather and short-term forecasts with METAR (METeorological Aerodrome Report, observation message of meteorological conditions for aviation) and TAF (Terminal Aerodrome Forecast: short-term forecast message of meteorological conditions for aviation ). And other resources such as VAC (Visual Approach Chart) to prepare flights.

Singapore Changi airport (Singapore)

Singapore Changi airport is located near Singapore, with Tampines Estate at 4mi↑, Kampong Pasir Ris at 5mi↑, Punggol Estate at 6mi↑, Kampong Siren at 7mi↑, Somapah Serangoon at 8mi↑, Seletar at 10mi↑,

→ See also airports in Singapore

aerial view of Singapore Changi airport

Airport code

ICAO code : WSSS
IATA code : SIN
Local code : -

Elevation : 7 m = 23ft

Runways

runway 02C/20C : 4000m = 13123ft
runway 02L/20R : 4000m = 13123ft
runway 02R/20L : 2748m = 9016ft

Coming to Singapore Changi airport

Hotels : book on Hotels.com Booking Expedia

Taxi : book on Taxi Booking

Rent a car : book on Rentalcars

By train : book on Trip.com

By plane :

Singapore Changi airport at 0mi : book on Iberia Singapore Airlines
Paya Lebar Air Base airport at 6mi : book on Trip.com
Seletar airport at 10mi : book on Trip.com

To travel

weather : broken clouds at Tampines Estate

84°F
82 ↗ 91°F

wind ↑ 6mph

Aviation weather for Singapore Changi airport WSSS SIN

See aviation weather

VAC for Singapore Changi airport WSSS SIN

The Visual Approach Chart (VAC Visual Approach Chart) is provided without any guarantee of its timeliness. The pilot is the only person responsible for the verification of its validity before using it operationally to prepare a flight or to use it during its navigation.

NOTAM for Singapore Changi airport

NOTAMs are provided without any guarantee of their topicality. The pilot is the only person responsible for the verification of its validity before using it operationally to prepare a flight or to use it during its navigation.

NOTAM A1814/25

valid from Saturday, May 31, 2025 at 16:00 to Thursday, July 31, 2025 at 15:59

TWY S2 CLSD.

Issued on Wednesday, May 28, 2025 at 18:13

NOTAM A1709/25

valid from Saturday, June 14, 2025 at 10:31 to Saturday, August 16, 2025 at 11:14

AP CLSD DUE TO NATIONAL DAY AERIAL FLYPAST, REF AIP SUP 035/2025

Issued on Friday, May 16, 2025 at 02:31

NOTAM A2265/25

valid from Sunday, July 6, 2025 at 17:00 to Wednesday, August 20, 2025 at 22:00

TWY W10 CLSD DUE WIP

Issued on Thursday, June 26, 2025 at 06:16

NOTAM A2135/25 TWY W BTN TWY V3 AND TWY V4, INCLUDING JUNCTION OF TWY W/TWY W3

valid from Wednesday, July 9, 2025 at 17:00 to Sunday, August 3, 2025 at 22:00

TWY W BTN TWY V3 AND TWY V4, INCLUDING JUNCTION OF TWY W/TWY W3

NORTHBOUND/SOUTHBOUND CLSD

Issued on Tuesday, June 17, 2025 at 06:22

NOTAM A2397/25 FLW THE GREENS OPR TRIAL ONGOING IN CHANGI AP. DRG THE TRIAL:

valid from Monday, July 14, 2025 at 11:00 to Tuesday, September 30, 2025 at 23:00

FLW THE GREENS OPR TRIAL ONGOING IN CHANGI AP. DRG THE TRIAL:

I. TWY CL LGT WILL BE PROGRESSIVELY TURNED ON. PILOTS ARE PROVIDED

WITH DEDICATED VISUAL GUIDANCE ON ATC CLEARED TAX RTE.

II. FLW THE GREENS SER NOT AVBL ON RWY AND RAPID EXIT TWY. PILOTS

SHALL FLW ATC VERBAL TURN INSTRUCTIONS WHEN VACATING RWY.

III. ATC WILL USE THE PHRASEOLOGY ''FLW THE GREENS'' TOGETHER WITH

VERBAL CLR LIMIT (HOLD SHORT POINT) WHEN ISSUING A TAX CLR TO

PILOTS.

IV. PILOTS SHALL STRICTLY ADHERE TO FLW THE GREENS TAX INSTRUCTIONS

AND FLW THE GREEN CL LGT UNTIL THE CLR LIMIT OR WHERE RED STOPBAR

IS ILLUMINATED.

V. PILOTS SHALL NOT TAX AHEAD IF THERE ARE NO GREEN CL LGT OR WHEN

RED STOP BAR IS ILLUMINATED. PILOTS SHALL NOT PROCEED PAST THE

VERBAL CLR LIMIT WITHOUT ATC APPROVAL EVEN WHEN NO RED STOPBAR IS

ILLUMINATED.

VI. IN INSTANCES OF AMBIGUITY OR WHEN MULTIPLE GREEN LGT SEGMENTS

ARE OBS, PILOTS SHALL STOP AND SEEK CONFIRMATION BEFORE FURTHER

TAX. ATC WILL PROVIDE ADDN VERBAL GUIDANCE.

Issued on Friday, July 4, 2025 at 14:33

NOTAM A2644/25 A2644/25 NOTAMC A2416/25

valid from Monday, July 28, 2025 at 14:41 to Thursday, July 31, 2025 at 14:41

A2644/25 NOTAMC A2416/25

Q) WSJC/QMXXX/IV/BO/A/000/999/0122N10359E005

A) WSSS B) 2507281441

E) TWY. NOTAM CNL

Issued on Monday, July 28, 2025 at 14:41

NOTAM A2645/25 A2645/25 NOTAMC A2419/25

valid from Monday, July 28, 2025 at 14:42 to Thursday, July 31, 2025 at 14:42

A2645/25 NOTAMC A2419/25

Q) WSJC/QMXXX/IV/BO/A/000/999/0122N10359E005

A) WSSS B) 2507281441

E) TWY. NOTAM CNL

Issued on Monday, July 28, 2025 at 14:42

NOTAM A2659/25

valid from Thursday, July 31, 2025 at 06:00 to Sunday, August 31, 2025 at 15:59

TWY S7 CLSD

Issued on Wednesday, July 30, 2025 at 05:18

NOTAM A2660/25

valid from Thursday, July 31, 2025 at 06:00 to Sunday, August 31, 2025 at 15:59

TXL S9 BEHIND ACFT STANDS 476 AND 477 CLSD

Issued on Wednesday, July 30, 2025 at 05:20

NOTAM A2526/25

valid from Thursday, July 31, 2025 at 16:00 to Tuesday, September 30, 2025 at 15:59

TWY S2 CLSD

Issued on Wednesday, July 16, 2025 at 10:30

NOTAM A2677/25 FLW TWY CLSD:

valid from Friday, August 1, 2025 at 18:00 to Friday, August 1, 2025 at 22:00

FLW TWY CLSD:

1. TXL P7 BEHIND ACFT STANDS E20 TO E27, INCLUDING JUNCTION OF TXL

P7/TXL P6

2. TXL P6 BEHIND ACFT STANDS E11 TO E12.

Issued on Wednesday, July 30, 2025 at 12:49

NOTAM A2679/25 FLW TWY CLSD:

valid from Sunday, August 3, 2025 at 17:00 to Wednesday, August 6, 2025 at 22:00

FLW TWY CLSD:

1.TWY W6 SB

2.TWY W BTN TWY W6 NB AND TWY W7 SB, INCLUDING JUNCTIONS OF TWY

W/TWY W6 SB/TWY V7 AND TWY W/TWY W7 NB

Issued on Wednesday, July 30, 2025 at 16:01

NOTAM A2611/25 TWY CL LIGHTS AT CHANGI AIRPORT WILL BE TURNED ON PROGRESSIVELY DUE

valid from Monday, August 4, 2025 at 04:00 to Friday, August 15, 2025 at 07:00

TWY CL LIGHTS AT CHANGI AIRPORT WILL BE TURNED ON PROGRESSIVELY DUE

TESTING IN PROGRESS. PILOTS ARE TO STRICTLY ADHERE TO VERBAL ATC

TAXI INSTRUCTION AND STOP BEHIND RED STOPBAR LIGHTS AT ALL TIME

Issued on Friday, July 25, 2025 at 07:31

NOTAM A2648/25 TWY N2 BTN TWY N AND TWY V3 INCLUDING JUNCTION OF TWY N2/TWY V4

valid from Tuesday, August 5, 2025 at 06:00 to Tuesday, August 5, 2025 at 09:00

TWY N2 BTN TWY N AND TWY V3 INCLUDING JUNCTION OF TWY N2/TWY V4

CLSD

Issued on Tuesday, July 29, 2025 at 09:07

NOTAM A2137/25 TWY W BTN TWY V2 AND TWY N, INCLUDING JUNCTIONS OF TWY W/TWY V3,

valid from Wednesday, August 6, 2025 at 17:00 to Wednesday, August 6, 2025 at 22:00

TWY W BTN TWY V2 AND TWY N, INCLUDING JUNCTIONS OF TWY W/TWY V3,

TWY W/TWY W3 NB/SB, AND TWY W/TWY V4 CLSD

Issued on Tuesday, June 17, 2025 at 06:28

NOTAM A2308/25 TRIGGER NOTAM - AIRAC AIP SUP 091/2025 - WEF 07 AUG 2025 -

valid from Thursday, August 7, 2025 at 22:00 to Thursday, August 21, 2025 at 22:00

TRIGGER NOTAM - AIRAC AIP SUP 091/2025 - WEF 07 AUG 2025 -

SINGAPORE CHANGI AIRPORT - CHANGES TO PILOT DISPLAY INFORMATION ON

THE ACFT DOCKING GUIDANCE SYSTEM (ADGS), PILOT DISPLAY UNIT (PDU

Issued on Friday, June 27, 2025 at 08:49

NOTAM A2678/25 TXL U2 BEHIND ACFT STANDS G12 TO G17, INCLUDING JUNCTION OF TXL

valid from Friday, August 8, 2025 at 17:00 to Friday, August 8, 2025 at 18:00

TXL U2 BEHIND ACFT STANDS G12 TO G17, INCLUDING JUNCTION OF TXL

U2/TWY U7 CLSD

Issued on Wednesday, July 30, 2025 at 15:59

NOTAM A2682/25

valid from Friday, August 8, 2025 at 18:00 to Friday, August 8, 2025 at 19:00

TXL U1 BEHIND ACFT STANDS G18L TO G21R CLSD

Issued on Wednesday, July 30, 2025 at 16:05

NOTAM A2681/25 TWY RESTRICTIONS:

valid from Friday, August 8, 2025 at 18:00 to Friday, August 8, 2025 at 19:00

TWY RESTRICTIONS:

ACFT TAX ON TWY S WB/EB NOT ALLOWED TO TURN RIGHT/LEFT ONTO TWY R7

Issued on Wednesday, July 30, 2025 at 16:04

NOTAM A2683/25 TXL U2 BEHIND ACFT STANDS G6 TO G10, INCLUDING JUNCTION OF TXL

valid from Friday, August 8, 2025 at 19:00 to Friday, August 8, 2025 at 20:00

TXL U2 BEHIND ACFT STANDS G6 TO G10, INCLUDING JUNCTION OF TXL

U2/TWY U8 CLSD

Issued on Wednesday, July 30, 2025 at 16:07

NOTAM A2680/25 TXL U2 BEHIND ACFT STANDS G1 TO G5, INCLUDING JUNCTION OF TXL

valid from Friday, August 8, 2025 at 20:00 to Friday, August 8, 2025 at 21:00

TXL U2 BEHIND ACFT STANDS G1 TO G5, INCLUDING JUNCTION OF TXL

U2/TWY U9 CLSD

Issued on Wednesday, July 30, 2025 at 16:02

NOTAM A2429/25 FOR REASONS OF NATIONAL SECURITY, THE AIRSPACE OVER SINGAPORE IS

valid from Saturday, August 9, 2025 at 07:30 to Saturday, August 9, 2025 at 15:00

FOR REASONS OF NATIONAL SECURITY, THE AIRSPACE OVER SINGAPORE IS

DECLARED TEMPORARY RESTRICTED AIRSPACE. ALL ARRIVALS INTO SINGAPORE

CHANGI AIRPORT SHALL BE REQUIRED TO:

1)REDUCE SPEED TO 250 KNOTS INDICATED AIRSPEED OR SLOWER WITHIN

40NM RADIUS FROM SINGAPORE CHANGI AIRPORT OR WHEN AT OR BELOW

10,000FT

2)BE RESTRICTED TO RWY 02C UP TO A TAILWIND OF 10 KNOTS UNLESS

UNABLE TO ACCEPT TAILWIND COMPONENT. TRAFFIC REQUIRING TO LAND ON

RWY20R CAN EXPECT DELAY OF AT LEAST 15 MIN

3)EXPECT AN IN-TRAIL SPACING OF AT LEAST 10NM

4)ESTABLISH ON ILS RWY02C BY 10NM FINALS. THEREAFTER, AIRCRAFT

MUST NOT DEVIATE FROM THE LOCALISER COURSE WITHOUT ATC CLEARANCE.

Issued on Tuesday, July 8, 2025 at 02:27

NOTAM A2684/25 FLW TWY CLSD

valid from Sunday, August 10, 2025 at 17:00 to Sunday, August 10, 2025 at 18:00

FLW TWY CLSD

1. TWY V BTN TWY V12 NB AND TWY V7, INCLUDING JUNCTION OF TWY V/TWY

V7/TXL V7

2. TXL V7 BEHIND ACFT STANDS A1 TO A2 AND B1 TO B2

Issued on Wednesday, July 30, 2025 at 16:12

NOTAM A2182/25 FLW TWY CLSD:

valid from Sunday, August 10, 2025 at 17:00 to Wednesday, August 27, 2025 at 22:00

FLW TWY CLSD:

1) TWY W3

2) TWY W BTN TWY V3 AND TWY V4 INCLUDING JUNCTIONS OF TWY W/TWY W3

NORTHBOUND/SOUTHBOUND

Issued on Thursday, June 19, 2025 at 16:16

NOTAM A2685/25 FLW TWY CLSD

valid from Sunday, August 10, 2025 at 18:00 to Sunday, August 10, 2025 at 19:00

FLW TWY CLSD

1. JUNCTION OF TWY V/TWY V7/TXL V7

2. TXL V7 BEHIND ACFT STANDS A1 TO A2 AND B1 TO B2

Issued on Wednesday, July 30, 2025 at 16:13

NOTAM A2686/25 FLW TWY CLSD

valid from Sunday, August 10, 2025 at 19:00 to Sunday, August 10, 2025 at 20:00

FLW TWY CLSD

1. TWY V BTN TXL V7 AND TWY V13 SB

2. TWY V7 BTN TWY W AND TWY V

Issued on Wednesday, July 30, 2025 at 16:15

NOTAM A2687/25 FLW TWY CLSD:

valid from Sunday, August 10, 2025 at 20:00 to Sunday, August 10, 2025 at 21:00

FLW TWY CLSD:

1. TWY V BTN TWY V6 AND TWY V5, INCLUDING JUNCTION OF TWY V/TWY V13

2. TWY V13 BEHIND ACFT STANDS B5 TO B7

Issued on Wednesday, July 30, 2025 at 16:17

NOTAM A2688/25 TWY RESTRICTIONS:

valid from Sunday, August 10, 2025 at 20:00 to Sunday, August 10, 2025 at 21:00

TWY RESTRICTIONS:

ACFT TAX ON TWY V5 EB/WB NOT ALLOWED TO TURN LEFT/RIGHT ONTO TWY V

Issued on Wednesday, July 30, 2025 at 16:22

NOTAM A1938/25 FLW TXL CLSD:

valid from Sunday, August 17, 2025 at 03:00 to Monday, August 18, 2025 at 06:00

FLW TXL CLSD:

1) TXL N4 BEHIND ACFT STAND 605 INCLUDING JUNCTION OF TXL N4/TXL N5

2) TXL N4 BEHIND ACFT STAND 603

Issued on Tuesday, June 3, 2025 at 18:20

NOTAM A1942/25 TXL N5 BTN JUNCTION OF TWY P8/TXL N5/TWY K AND BEHIND ACFT STANDS

valid from Monday, August 18, 2025 at 03:00 to Tuesday, August 19, 2025 at 07:00

TXL N5 BTN JUNCTION OF TWY P8/TXL N5/TWY K AND BEHIND ACFT STANDS

611 AND 612 CLSD

Issued on Tuesday, June 3, 2025 at 18:29

NOTAM A2417/25 FLW TWY CLSD DUE WIP:

valid from Friday, August 22, 2025 at 18:00 to Tuesday, August 26, 2025 at 20:00

FLW TWY CLSD DUE WIP:

I. TXL R3 BEHIND ACFT STANDS F35R TO F36, INCLUDING JUNCTION OF TXL

R3/TWY T

II. TWY T BTN TXL R1 AND TWY R4, INCLUDING JUNCTIONS OF TWY T/TWY

T5/TXL R2 AND TWY T/TWY T6

Issued on Tuesday, July 8, 2025 at 15:37

NOTAM A2421/25 FLW TWY CLSD DUE WIP:

valid from Friday, August 22, 2025 at 20:00 to Tuesday, August 26, 2025 at 22:00

FLW TWY CLSD DUE WIP:

I. TXL R1 BEHIND ACFT STANDS E6 TO E7

II. TWY T BTN TWY P5 AND TXL R3, INCLUDING JUNCTIONS OF TWY T/TWY

T5/TXL R2 AND TWY T/TXL R1

Issued on Tuesday, July 8, 2025 at 15:48

NOTAM A2661/25 TWY N2 BTN TWY N AND TWY V3 INCLUDING JUNCTION OF TWY N2/TWY V4

valid from Tuesday, September 2, 2025 at 06:00 to Tuesday, September 2, 2025 at 09:00

TWY N2 BTN TWY N AND TWY V3 INCLUDING JUNCTION OF TWY N2/TWY V4

CLSD

Issued on Wednesday, July 30, 2025 at 05:22

NOTAM A2601/25 TRIGGER NOTAM - AIRAC AIP SUP 119/2025 - WEF 04 SEP 2025 -

valid from Wednesday, September 3, 2025 at 00:00 to Tuesday, September 16, 2025 at 00:00

TRIGGER NOTAM - AIRAC AIP SUP 119/2025 - WEF 04 SEP 2025 -

SINGAPORE CHANGI AIRPORT - UPDATED INFORMATION AND DATA FOR RWY

02R/20L

Issued on Thursday, July 24, 2025 at 12:50

NOTAM A2600/25 TRIGGER NOTAM - AIRAC AIP SUP 120/2025 - WEF 04 SEP 2025 -

valid from Thursday, September 4, 2025 at 17:00 to Thursday, September 18, 2025 at 17:00

TRIGGER NOTAM - AIRAC AIP SUP 120/2025 - WEF 04 SEP 2025 -

SINGAPORE CHANGI AIRPORT - UPDATED CLOSURE SCHEDULES FOR RUNWAY

02L/02R AND RUNWAY 02C/20C

Issued on Thursday, July 24, 2025 at 12:40

NOTAM A2418/25 FLW TWY CLSD DUE WIP:

valid from Friday, September 19, 2025 at 18:00 to Tuesday, September 23, 2025 at 20:00

FLW TWY CLSD DUE WIP:

I. TXL R3 BEHIND ACFT STANDS F35R TO F36, INCLUDING JUNCTION OF TXL

R3/TWY T

II. TWY T BTN TXL R1 AND TWY R4, INCLUDING JUNCTIONS OF TWY T/TWY

T5/TXL R2 AND TWY T/TWY T6

Issued on Tuesday, July 8, 2025 at 15:38

NOTAM A2420/25 FLW TWY CLSD DUE WIP:

valid from Friday, September 19, 2025 at 20:00 to Tuesday, September 23, 2025 at 22:00

FLW TWY CLSD DUE WIP:

I. TXL R1 BEHIND ACFT STANDS E6 TO E7

II. TWY T BTN TWY P5 AND TXL R3, INCLUDING JUNCTIONS OF TWY T/TWY

T5/TXL R2 AND TWY T/TXL R1

Issued on Tuesday, July 8, 2025 at 15:42

NOTAM A2398/25 FLW THE GREENS OPR TRIAL ONGOING IN CHANGI AP. DRG THE TRIAL:

valid from Wednesday, October 1, 2025 at 11:00 to Wednesday, December 31, 2025 at 23:00

FLW THE GREENS OPR TRIAL ONGOING IN CHANGI AP. DRG THE TRIAL:

I. TWY CL LGT WILL BE PROGRESSIVELY TURNED ON. PILOTS ARE PROVIDED

WITH DEDICATED VISUAL GUIDANCE ON ATC CLEARED TAX RTE.

II. FLW THE GREENS SER NOT AVBL ON RWY AND RAPID EXIT TWY. PILOTS

SHALL FLW ATC VERBAL TURN INSTRUCTIONS WHEN VACATING RWY.

III. ATC WILL USE THE PHRASEOLOGY ''FLW THE GREENS'' TOGETHER WITH

A VERBAL CLR LIMIT (HOLD SHORT POINT) WHEN ISSUING A TAX CLR TO

PILOTS.

IV. PILOTS SHALL STRICTLY ADHERE TO FLW THE GREENS TAX INSTRUCTIONS

AND FLW THE GREEN CL LGT UNTIL THE CLR LIMIT OR WHERE RED STOPBAR

IS ILLUMINATED.

V. PILOTS SHALL NOT TAX AHEAD IF THERE ARE NO GREEN CL LGT OR WHEN

RED STOP BAR IS ILLUMINATED. PILOTS SHALL NOT PROCEED PAST THE

VERBAL CLR LIMIT WITHOUT ATC APPROVAL EVEN WHEN NO RED STOPBAR IS

ILLUMINATED.

VI. IN INSTANCES OF AMBIGUITY OR WHEN MULTIPLE GREEN LGT SEGMENTS

ARE OBS, PILOTS SHALL STOP AND SEEK CONFIRMATION BEFORE FURTHER

TAX. ATC WILL PROVIDE ADDN VERBAL GUIDANCE.

VII. PILOTS ARE REMINDED TO EXER CTN TO ENSURE SUFFICIENT WINGTIP

CLR AND SEPARATION WITH OTHER ACFT. WHEN APPROACHING ACFT STAND,

PILOTS SHALL FLW THE LEAD IN LINE MARKINGS AS THE GREEN LGT MAY NOT

TERMINATE IN FRONT OF THE ACFT STAND.

PART 1 OF 2

Issued on Friday, July 4, 2025 at 14:39

Around Singapore Changi airport (Singapore)

near

Hotels in Tampines Estate
TianAn Rega Hotel (Beijing) at 2776mi↑
Station de montagne Davos Klosters at 6348mi↑
Station de montagne Saint-Moritz at 6349mi↑
Station de montagne Arosa Lenzerheide at 6358mi↑
Station de montagne Laax at 6374mi↑
Station de montagne Aletsch Arena at 6431mi↑
Hôtel Cour du Corbeau (Strasbourg) at 6433mi↑
Hotel Origami (Strasbourg) at 6434mi↑
Station de montagne Grindelwald-Wengen at 6436mi↑
Station de montagne Saas Fee at 6441mi↑
Station de montagne Zermatt at 6451mi↑
Station de montagne Kandersteg-Sunnbüel-Oeschinensee at 6451mi↑
for Singapore Changi airport at 0mi↑
for Changi Air Base (East) airport at 1mi↑
for Paya Lebar Air Base airport at 6mi↑

nearest airports to Singapore Changi airport (Singapore)

Changi Air Base (East) airport (WSAC ) at 1mi↑NOTAM
Paya Lebar Air Base airport (WSAP QPG ) at 6mi↑METAR TAF NOTAM
KD Sultan Ismail heliport ( MY-0005) at 7mi↑
Kallang airport ( SG-0004) at 9mi↑defunct airport
Seletar airport (WSSL XSP ) at 10mi↑METAR TAF NOTAM
Brani Naval Base heliport ( SG-0001) at 13mi↑
Sembawang Air Base airport (WSAG ) at 14mi↑NOTAM
Johor Polo Club heliport ( MY-0033) at 17mi↑
Hang Nadim International airport (WIDD BTH ) at 18mi↑NOTAM
Tengah Air Base airport (WSAT TGA ) at 20mi↑NOTAM

→ See also Former airports in Singapore

Data sources

Infos générales : AVWX, France FFPLUM
METAR : AVWX
TAF : AVWX
Météo générale : Openweathermap et AVWX
NOTAM : FAA
VAC : France DGAC/SIA, Espagne ENAIRE, Belgique SKEYES
Aerial maps : Google Maps, Microsoft Bing ou OpenStreetMap