Motorcycles kill more than BMTC buses?

19 September 2010 - 11:43pm — silkboard

An interesting stat in the data sets from Traffic police - despite all the negative talk about BMTC drivers (tabloids love it), motor cycles accidents result in more deaths on city roads than BMTC buses. Further, tractors cause more deaths on city roads than taxis and maxi cabs combined. So much for the yellow plate trash talk :)

Accident cases reported, till July in 2010:

Sl. No.	Type of Vehicle	Fatal Cases		Non-Fatal		Damage	Total Cases
Sl. No.	Type of Vehicle	Cases	Killed	Cases	Injured	Damage	Total Cases
1	BMTC Bus	57	57	183	217	35	275
2	KSRTC Bus	8	8	27	36	9	44
3	Factory Bus	1	1	5	5	6	12
4	Private Bus	13	13	44	51	37	94
5	Lorry	83	100	157	196	189	429
6	Car	71	76	752	932	251	1074
7	Taxi	3	3	29	40	16	48
8	Jeep	3	3	23	34	8	34
9	Auto Rickshaw	13	13	219	259	23	255
10	Motor Cycle	76	79	603	666	47	726
11	Scooter	8	8	98	110	9	115
12	Moped	3	3	27	28	2	32
13	Tempo	37	39	169	233	93	299
14	Van	4	4	48	57	16	68
15	Maxi Cab	11	11	44	61	30	85
16	Un-Known Vehicle	43	43	43	56	3	89
17	Military Vehicle	3	3	0	1	0	3
18	Tractor	15	15	19	24	7	41
19	Tanker	9	9	19	28	5	33
20	Cycle	0	0	0	0	0	0
21	Jataka	0	0	0	0	0	0
22	Bullock Cart	0	0	0	0	0	0
23	Others	4	5	31	57	16	51
TOTAL		465	493	2540	3091	802	3807

Same holds for 2009 as well, so 2010 has been no aberration

Accident cases reported, full year 2009, source: Traffic Police

Sl. No.	Type of Vehicle	Fatal Cases		Non-Fatal		Damage	Total Cases
Sl. No.	Type of Vehicle	Cases	Killed	Cases	Injured	Damage	Total Cases
1	BMTC Bus	77	82	280	359	77	434
2	KSRTC Bus	14	14	49	58	20	83
3	Factory Bus	3	3	6	7	3	12
4	Private Bus	31	31	102	144	52	185
5	Lorry	100	107	300	392	296	696
6	Car	112	116	1330	1619	483	1925
7	Taxi	10	10	59	77	30	99
8	Jeep	5	5	54	65	8	67
9	Auto Rickshaw	31	31	425	505	43	499
10	Motor Cycle	123	124	1208	1343	97	1428
11	Scooter	14	15	191	213	11	216
12	Moped	6	6	40	43	1	47
13	Tempo	67	71	298	377	170	535
14	Van	6	6	111	139	33	150
15	Maxi Cab	14	15	75	128	28	117
16	Un-Known Vehicle	90	90	63	70	10	163
17	Military Vehicle	2	2	5	4	7	14
18	Tractor	10	10	41	46	9	60
19	Tanker	13	13	20	22	9	42
20	Cycle	0	0	2	2	0	2
21	Jataka	0	0	0	0	0	0
22	Bullock Cart	0	0	0	0	0	0
23	Others	9	10	50	55	42	101
TOTAL		737	761	4709	5668	1429	6875

Statistically speaking, lorries seem to be most dangerous - notice the high death to injury ratio (107/390). Other stat that catches the eye is - Motorcycles have higher death to total cases reported ratio than cars. 124/1428 vs 116/1925.

Comments

Not that I want to defend

rs - 20 Sep 2010 - 1:01am

Not that I want to defend motor cyclists - but is this `causes' or `involvement'. Clearly an accident involving a motorcycle is going to result in a higher likelyhood of fatality than one involving a car or bus....

Ramesh

Cars seems to top the list!

kbsyed61 - 20 Sep 2010 - 7:17am

SB,

Topping the list is 'CAR'.

Sl. No.	Type of Vehicle	Fatal Cases		Non-Fatal		Damage	Total Cases
		Cases	Killed	Cases	Injured

Car

752

932

251

1074

Sl. No.

Type of Vehicle

Fatal Cases

Non-Fatal

Damage

Total Cases

Car

112

116

1330

1619

483

1925

rs, could be both

silkboard - 20 Sep 2010 - 8:17am

@rs, I have the same question. On top of that, if a bike and a car collied, will there be 2 entries here (1 for car, 1 for bike)?

Also, to those who will say there are so many cars vs so few buses, that imbalance gets corrected by the fact that each bus does lot many more runs (7-8) than each car on the city road (mostly 2).

Motor cycles are the worst

Naveen - 20 Sep 2010 - 9:09am

two-wheelers and scooters top the list. BMTC buses comprise a minute fraction of the total violations caused by two-wheelers in the city

The biggest culprits after two-wheelers are goods vehicles, followed by cars, tempos and then autos.

Praveen Sood told TOI: "Every week we have 200 to 300 BMTC bus drivers at our traffic management centre. We give drivers feedback on their driving and violations through photographs shot by our cameras placed at strategic points. They come with a lot of cynicism and with the feeling that here is another agency harassing them apart from BMTC itself, but when they see on camera live what they have done and what they could have otherwise done, they go back transformed. The photography feedback sessions have been a revolution for BMTC drivers. They return than king traffic police for showing them where they went wrong and what they could have done right. They go back emancipated and don't feel victimized. No wonder violations by BMTC buses have come down and the relationship between drivers and traffic police is cordial."

See detailed report in TOI here.

More clarity needed before exoneration

sanjayv - 20 Sep 2010 - 10:00am

Like Ramesh pointed out, unless we know whether an accident results in a case against both vehicles involved (except for cases such as pedestrian accidents or accident on stationary property), it is too early to let BMTC drivers off the hook. I will not be surprised if motor cycle accidents result in the death of the driver of the vehicle while BMTC accidents, more often than not result in survival of everybody in the bus.

Bus and lorry put together certainly are a major cause of death and injury - large vehicles are dangerous. The other thing this statistic does not capture is the injury part. In many cases, injury is worse than death.

Can we normalize this data in terms of estimated kilometers driven by each category of vehicle. That would be interesting, don't you think.?

Idea is not to exonerate anyone

silkboard - 20 Sep 2010 - 12:03pm

Didn't post this to exonerate BMTC divers or anyone. A lot of talk happens without data, this supplies some. We all suck as drivers, pretty much equally, though the tendency is to blame Bus, Autos and Cabs no end.

Injury data is covered, see "non-fatal" column.

Normalizing by trip kilometers will give better picture. Applying this normalization factor to total tickets, fines, and then injury stats should give better picture.

While normalize on trip kilometer, can take vehicle population into account as well. Vehicle population X estimated trips = total trip kilometers, estimated of course.

Where do I post more data that I have? May be make a book with all traffic stats, and club such posts there.

Any BI/DW, Web programmers interested in making god presentations on top of this data? Join in to do some open data work, which is what all this is.

Let us take the percentage

Vasanth - 20 Sep 2010 - 12:14pm

Since the motorcycles are more in the city, no of accidents will be more. At the same time, drivers of the motorcycles will also be killed. We should take the percentage of accidents to total vehicles.

Also, if we compare the yester years, most of the people were using two wheelers, initially bicycles, then mopeds, bajaj scooters and finally to bikes. Scenairo was not this bad in those days due to reduced number of four wheelers.

Some of the bike riders are very rash so is the case of some of the car riders. But, bike should consider hitting a pedestrain or even a stray dog since the driver also will fall down. It is not the case with car drivers and hence so much raging especially youths on weekends and cab drivers everyday.. Car accidents are fatal on highways, less in cities. Still, people take cars run at 100+ loosing their as well as their families life although there are other safer mode of transportation in terms of trains and buses, just for the pleasure of the drive people still continue. Also, people do not buy cars with safety features, even if they buy, they do not use such as seat belts and air bags, these being a must for all cars in advanced countries.

We cannot generalize. It is a normaly tendency to blame car drivers if you are a bike driver and viceversa. Overall there is raging every where. Best is to promote PT usage more and more to save lives. Buses are always safer more than the cars especially on the highways.

2010 total cases - Infographic

idontspam - 20 Sep 2010 - 2:28pm

Where do I post more data

idontspam - 20 Sep 2010 - 2:33pm

Where do I post more data that I have? May be make a book with all traffic stats, and club such posts there.

Post your dataset on IBM many eyes, people can make their own visualizations and post it back here like I have done above

thats real cool, good find

silkboard - 20 Sep 2010 - 10:39pm

Cool, such tools is what we need, upload data there, and discuss snapshots here. will play with it after uploading some more.

It's sad there are so many

E.R. Ramachandran - 21 Sep 2010 - 5:57pm

It's sad there are so many loss of lives.

Does marriage make men drive slower? At least insurance companies think so!

Seriously, mobikes are more due to rash driving, more so if the rider is a bachelor.There is definitely a different thinking process if the rider is married and has a child waiting for him to return home..

The companies are partly to blame as they promote a he-man, macho image for a motorcyclist and image is everything these days! They should have a guard that will take the brunt of the fall should there be an accident. otherwise a rider has very little chance of survival.

Finally, I find lot of girls riding a scooty barely able to balance the vehicle when followed by a lorry. A school teacher lost both her children a fortnight back in Mysore as she was negotiating a steep gradient and a speed breaker to boot when she lost balance and a city bus ran over her; she survived but the kids were run over by the bus...

Does marriage make men drive

idontspam - 21 Sep 2010 - 9:12pm

Does marriage make men drive slower?

Yes, to the mall. The faster you get there the more she spends.

Number of offences by vehicle class?

Transmogrifier - 22 Sep 2010 - 12:19am

ids, how about looking at offences as a proportion of total registered vehicles using these statistics.

We would need to restrict analysis to classes for which data exists and (incorrectly) assume all offences are booked against city vehicles only. Despite this, that analysis might help us evaluate, more objectively, some of those-oft made claims; "auto drivers are rash, two-wheelers are aggressive...everyone but me is a bad driver" and so on.

Accident Propensity Index

idontspam - 22 Sep 2010 - 8:34am

Here you go, I call it the "Accident Propensity Index". A ratio of cases per 10K vehicles. Based on 2009 data taken from here. Others include the riff-raff vehicles- tempo, maxicab, bullock cart, taxi etc

Explanation: for every 10,000 vehicles of HTV type (lorry, tanker, tractor) 189 of them tend to get booked. Ideally this needs to be extrapolated for many years to establish a pattern. SO if the HTV bubble remained just as big over the years we can make the conclusion they are incorrigible. But one year is good enough for quick determination. We also need to remember we dont know for what reason they got booked. Case type will be interesting parameter in the mix. Lorrys are the fav to get pulled up for non driving related reasons

Tried the same using vehicle

Transmogrifier - 22 Sep 2010 - 12:05pm

Tried the same using vehicle data from BTP but went with the original accident case data that SB initially provided.

Since I was only including numbers killed in accidents, I called it, rather morbidly, a Lethality index.

As with ids' analyses above, numbers on the y-axis denote number of fatalities/10,000 vehicles in that class. For clarification, classes were defined from SB's dataset as:

2-wheelers: 'Motorcycle', 'Scooter' and 'Moped'
LMVs: 'Car' & 'Jeep'
Auto&Cab: 'Taxi' & 'Auto-rickshaw'
HTV: 'BMTC', KSRTC', 'Factory' and 'Private' buses and 'Maxicabs'
HGV: 'Lorry', Tractor' & 'Tanker'

Excluded from this is 'Tempo' and 'Van' since I wasn't sure where these would go (Auto&Cab, LMV?).

---

Once again I dont know how

rs - 22 Sep 2010 - 11:56am

Once again I dont know how accurate this is simply because a lot of two wheelers get away with their crimes and it is harder for a lorry or HTV to hit and run. This morning, for example - at least 20 two wheelers and 1 car ran the red light at which I was stopped. Cops tend to book cars or larger vehicles since their method of stopping a vehicle is to come in the way of the movement of it and make it stop - two wheelers can escape more easily. The plates on a two wheeler are typically two small or unclear to be legible so they can get away with this.

Futher, two wheelers can cause accidents are get away with them more easily. So while they might not be legally responsible oftentimes they may be morally responsible.

All this to say that its hard to get a good picture. I think the main culprits are both two wheelers, autos and HTVs because they tend to drive more haphazardly than other vehicles. Not that cars dont do their bit for bad driving - but still.

Ramesh

Difficult to interpret?

abidpqa - 28 Sep 2010 - 11:40pm

If the motorcycles hits a bigger vehicle, the motorcycle rider is more likely to get injured. If motorcycle hits a pedestrian, pedestrian is likely to get injured. As the data only says fatalities, it could be either the motorcyclist or pedestrian or even people in bigger vehicle. So the data is confusing??.

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