Singapore Bus Network Monitor

Shared corridors, stop demand, walking coverage and data quality from LTA DataMall, URA and SingStat open data. Built 2026-10-14. Code and method: GitHub.

7,845directed stop-to-stop links

396links shared by 10+ services

4.28 Mbus boardings per weekday, Aug 2026

80% to 98%residents within 400 m of a stop (walking network to straight line)

1. Where services share the road

Each line is a stop-to-stop link, coloured by scheduled buses per hour in the weekday AM peak (sum over all services using the link, from the published headway bands).

2. When people board

Monthly totals divided by the number of weekdays or weekend/holiday days in each month (MOM 2026 public holidays). June is the school holiday month.

3. Stops that changed

Weekday boardings per day in August 2026 against the median of February, June and July. A stop is flagged when its change is at least 3.5 robust standard deviations from the network-wide shift and at least 25% relative to it, among stops with 300+ daily boardings. Each flag is then categorised from the monthly series, the services at the stop (DataMall routes, April vs September) and outside sources; only causes named by an official notice count as verified. Details: ANOMALIES.md.

Stop	Name	Feb	Jun	Jul	Aug	vs baseline	Category	Verified event	Largest destination changes (trips per weekday, Jul → Aug)
02051	The Float @ Marina Bay	448	337	402	17	-96%	services withdrawn or rerouted away	float_f1 (2026-08-04)	Rochor 60->3; Downtown Core 59->3
27439	Blk 861	1,438	1,389	1,108	502	-64%	services withdrawn or rerouted away	jw75_reopen (2026-07-19)	Jurong West 957->365; Orchard 9->0
27349	Blk 745	1,356	1,351	1,048	634	-53%	services withdrawn or rerouted away	jw75_reopen (2026-07-19)	Jurong West 919->496; Jurong East 100->108
67339	Opp Blk 200B	288	294	357	382	+30%	services added or rerouted here	svc_965 (2026-05-24)	Hougang 24->34; Sengkang 166->174
43551	Opp Blk 435A	107	250	319	382	+52%	services added or rerouted here		Bukit Batok 312->374; Downtown Core 7->8
81181	Dakota Stn Exit A/Blk 99	2,094	2,149	2,600	2,783	+30%	service change (direction unclear)		Marine Parade 1306->1397; Geylang 910->963
18331	Kent Ridge Stn Exit A/NUH	467	469	506	641	+36%	service change (direction unclear)		Queenstown 506->641
04121	SMU	2,014	1,411	1,591	2,063	+30%	academic term		Orchard 279->385; Kallang 114->158
16179	Opp Yusof Ishak Hse	685	609	677	901	+33%	academic term		Clementi 461->611; Bukit Timah 59->94
27261	Hall 4	683	321	417	564	+35%	academic term		Jurong West 417->563
16159	Coll of Design & Engrg	297	237	300	413	+39%	academic term		Queenstown 222->312; Clementi 27->50
96111	Opp ITE Coll East Adm Blk	3,279	914	1,928	2,683	+39%	academic term		Tampines 1214->1674; Sengkang 337->473
96119	ITE Coll East Adm Blk	2,084	574	1,329	1,858	+40%	academic term		Bedok 754->1078; Tampines 510->690
17191	NUS High Sch	1,214	655	1,001	1,437	+43%	academic term		Clementi 542->749; Queenstown 389->590
16099	Opp NUS Sports Ctr	337	271	188	392	+44%	academic term		Queenstown 88->220; Bukit Merah 70->141
18309	Blk S17	310	315	321	454	+44%	academic term		Queenstown 321->454
27221	Sch of CEE	746	450	584	869	+49%	academic term		Jurong West 573->851; Western Water Catchment 10->18
16009	Kent Ridge Ter	1,379	855	1,029	1,632	+59%	academic term		Clementi 398->691; Queenstown 410->631
16091	NUS Sports Ctr	1,163	918	959	1,525	+59%	academic term		Clementi 442->830; Jurong East 243->325
19059	UTown - RC4	345	121	278	446	+60%	academic term		Clementi 248->371; Queenstown 30->74
27231	Wee Kim Wee Sch of C&I	1,165	660	757	1,268	+67%	academic term		Jurong West 749->1250; Western Water Catchment 8->19
17099	UTown - Cendana	484	316	399	670	+68%	academic term		Queenstown 291->504; Clementi 108->165
16189	Information Technology	1,457	902	934	1,715	+84%	academic term		Clementi 519->980; Queenstown 313->514
27199	Hall 11	612	306	383	709	+85%	academic term		Jurong West 371->688; Western Water Catchment 12->22
27061	Sch of ADM	567	243	289	561	+94%	academic term		Jurong West 272->509; Western Water Catchment 17->51
16131	Opp Kent Ridge Ter	501	301	300	614	+103%	academic term		Clementi 174->336; Queenstown 46->123
27311	Hall 2	238	111	149	309	+107%	academic term		Jurong West 113->226; Western Water Catchment 36->83
27071	Nanyang Cres Halls	247	106	151	317	+109%	academic term		Jurong West 125->208; Western Water Catchment 26->109
27241	SPMS	361	191	235	506	+114%	academic term		Jurong West 233->498; Western Water Catchment 2->8
27219	NIE Blk 2	1,017	497	600	1,392	+132%	academic term		Jurong West 488->1187; Western Water Catchment 112->206
27211	Lee Wee Nam Lib	3,523	1,285	1,674	3,885	+132%	academic term		Jurong West 1619->3741; Western Water Catchment 55->144
16199	Aft Architecture Dr	328	160	189	445	+135%	academic term		Clementi 102->232; Queenstown 48->118
27251	Academic Bldg Sth	2,051	601	900	2,268	+152%	academic term		Jurong West 898->2257; Western Water Catchment 2->12
16149	SDE3	278	113	127	338	+165%	academic term		Queenstown 65->171; Clementi 48->130
17149	Blk 426	842	703	777	1,002	+29%	academic term (within 600 m of a campus)		Queenstown 498->693; Clementi 86->123
16151	The Japanese Pr Sch	1,186	905	1,084	1,403	+29%	academic term (within 600 m of a campus)		Clementi 694->869; Queenstown 139->234
17091	Aft Clementi Ave 1	1,144	564	942	1,250	+33%	academic term (within 600 m of a campus)		Clementi 619->814; Bukit Timah 238->307
17121	Blk 610	1,819	1,289	1,626	2,185	+34%	academic term (within 600 m of a campus)		Clementi 735->1018; Jurong East 395->522
27539	Bef Xingnan Pr Sch	440	268	353	504	+43%	academic term (within 600 m of a campus)		Jurong West 316->443; Jurong East 30->52
17139	Aft Clementi Ave 2	690	601	765	1,003	+45%	academic term (within 600 m of a campus)		Queenstown 511->714; Clementi 51->74
19051	New Town Sec Sch	1,229	504	946	1,458	+54%	academic term (within 600 m of a campus)		Queenstown 747->1157; Bukit Merah 131->190
17131	Clementi Flyover	323	158	250	392	+56%	academic term (within 600 m of a campus)		Clementi 94->193; Bukit Batok 47->68
27321	Blk 949	408	295	313	489	+56%	academic term (within 600 m of a campus)		Western Water Catchment 305->484; Jurong West 8->6
16069	Heng Mui Keng Terr	1,059	619	763	1,370	+80%	academic term (within 600 m of a campus)		Queenstown 504->878; Bukit Merah 131->246
16061	Opp Heng Mui Keng Terr	865	501	573	1,198	+109%	academic term (within 600 m of a campus)		Clementi 410->906; Jurong East 57->114
16141	Tentera Diraja Mque	414	180	199	558	+179%	academic term (within 600 m of a campus)		Clementi 121->350; Queenstown 28->87
44151	Opp Bt Batok Fire Stn	763	346	580	755	+30%	school-term seasonality (June holidays in the baseline)		Woodlands 156->219; Bukit Panjang 186->245
44159	Bt Batok Fire Stn	1,787	598	1,249	1,666	+33%	school-term seasonality (June holidays in the baseline)		Bukit Batok 565->751; Jurong West 306->422
27401	Opp Blk 821	971	684	600	921	+35%	school-term seasonality (June holidays in the baseline)		Jurong West 600->921; Pioneer 0->0
77219	Opp Blk 626	696	555	574	773	+35%	school-term seasonality (June holidays in the baseline)		Pasir Ris 574->773
46369	Blk 413	1,197	823	836	1,199	+43%	school-term seasonality (June holidays in the baseline)		Woodlands 836->1199
28369	Opp Jurong Lake	466	275	160	423	+54%	school-term seasonality (June holidays in the baseline)		Jurong East 133->360; Tengah 10->26
46351	Woodhaven	363	210	218	349	+60%	school-term seasonality (June holidays in the baseline)		Woodlands 218->349
27461	Opp Blk 276B	573	615	867	914	+49%	sustained step up since July		Jurong West 862->907; Downtown Core 5->6
16109	The Alpha	232	245	387	401	+63%	sustained step up since July		Clementi 358->370; Queenstown 24->25
16039	S'pore Science Pk II	535	637	1,266	1,303	+105%	sustained step up since July		Queenstown 1035->1058; Orchard 13->17
16031	Opp S'pore Science Pk II	152	207	531	565	+173%	sustained step up since July		Clementi 375->401; Queenstown 76->79
14121	Opp HarbourFront Int	2,381	2,371	2,198	1,684	-29%	unexplained		Bukit Merah 1044->763; Queenstown 766->622
17119	Opp Blk 343	533	457	503	652	+30%	unexplained		Queenstown 351->499; Clementi 128->124
50241	Opp S'pore Khalsa Assn	192	244	279	318	+30%	unexplained		Kallang 169->193; Downtown Core 67->78
65449	Blk 315B	442	238	518	580	+31%	unexplained		Punggol 461->524; Downtown Core 4->3
94009	Upp East Coast Ter	321	328	398	434	+32%	unexplained		Bedok 283->304; Tampines 18->23
75069	Blk 970A	733	846	1,045	1,136	+34%	unexplained		Bedok 818->911; Geylang 134->130
40501	Blk 131D	366	350	468	492	+34%	unexplained		Jurong East 381->404; Bukit Batok 17->18
53339	Opp Bright Hill Tp	356	348	296	480	+38%	unexplained		Bishan 252->409; Ang Mo Kio 44->71
27101	Opp Westwood Sec Sch	1,737	1,278	1,493	2,085	+40%	unexplained		Western Water Catchment 541->1022; Choa Chu Kang 840->929
18041	Normanton Pk	431	362	413	578	+40%	unexplained		Queenstown 226->371; Clementi 94->112
15221	Aft Sth Buona Vista Rd	673	598	811	984	+46%	unexplained		Queenstown 590->716; Clementi 160->207
27399	Bet Blks 859/860	755	664	963	1,334	+77%	unexplained		Jurong West 963->1334; Pioneer 0->0
22449	Blk 685B	421	378	530	813	+93%	unexplained		Jurong West 498->774; Jurong East 20->27
51039	Opp S'pore Polo Club	296	146	170	362	+112%	unexplained		Novena 109->232; Orchard 8->20

4. Where trips go

Origin-destination pairs from the tap-in and tap-out stops of weekday bus trips (August 2026, per weekday). 54% of bus trips start and end in the same planning area, so buses mostly carry local and feeder trips. OD totals match the stop tap-in totals to within 0.014%.

5. Who lives within 400 m of a stop

SingStat GHS 2025 residents placed on Master Plan 2019 housing parcels (weighted by plot ratio). Reach is measured three ways: straight line (upper bound), straight line with a 1.3 detour factor, and along the OpenStreetMap walking network (lower bound: OSM misses many void-deck and linkway shortcuts in HDB estates). The map shows the straight-line measure. The low areas are the same under all three.

6. Bus priority screening

Bus links where general traffic in the weekday AM peak is slower than at night. Screening numbers from LTA speed bands, used for ranking, not measured bus travel times.

Observed periods (Singapore time): weekday AM — 2 weekday mornings (2026-09-28, 2026-10-14), 15 snapshots, 2026-09-28 07:47 to 2026-10-14 09:30; night — 89 snapshots, 2026-09-26 22:05 to 2026-10-14 05:00. Each eligible link needs at least 4 valid snapshots in each period, each covering at least half its length; a link's AM speed is the median of its daily medians and needs at least 1 mornings.

Eligible links: 3,378. Positive estimated AM loss: 2,737. The map shows up to 40 highest-ranked links; the table shows the first 10.

Scroll the table horizontally to read all columns.

Highest estimated bus-priority opportunities
Stop link	Services	Scheduled buses/h	AM km/h	Night km/h	Estimated bus-min lost/h
72019 → 83119	14	96.0	37.9	50.4	26.3
94089 → 94039	11	55.4	20.1	41.7	25.8
98019 → 76249	11	65.4	28.2	40.1	24.8
03111 → 03071	33	106.0	26.1	39.6	24.7
63209 → 63199	15	67.8	27.4	45.0	23.3
59041 → 59051	16	80.6	27.8	40.6	21.9
03129 → 03218	33	139.2	33.6	40.7	21.8
60119 → 60099	10	55.4	29.1	46.2	21.1
62071 → 62081	4	22.8	14.4	30.8	20.1
03059 → 03129	24	143.3	30.9	37.4	19.2

7. Data quality

Check	Table	Failing	Rows	Pass	Note
primary key unique (ServiceNo, Direction, StopSequence)	bus_routes	0	26,842	100.00%
stop sequence continuous (step = 1)	bus_routes	236	26,842	99.12%
cumulative distance non-decreasing along route	bus_links	1	26,043	100.00%
link length plausible (0 < km <= 5)	bus_links	209	26,043	99.20%	0 km = consecutive stops sharing a location; >5 km = non-stop sections of express and City Direct services (e.g. 646-649)
route stop exists in BusStops master	bus_routes	0	5,209	100.00%	unique stop codes
LTA and OSM stop positions agree within 50 m	stops	269	5,194	94.82%	median gap 6.5 m
stop has non-zero coordinates	stops	0	5,209	100.00%
route service exists in BusServices	bus_routes	0	799	100.00%	service-direction pairs
AM peak frequency present	bus_services	142	802	82.29%
volume stop code exists in route network	stop_volume	129	812,444	99.98%
volume non-negative	stop_volume	0	812,444	100.00%
hour within 0-23	stop_volume	14	812,444	100.00%
stop inside Singapore bounding box	stops	1	5,209	99.98%	expected: 46239 Larkin Terminal, Johor Bahru (cross-border service 170)