Understanding Road Crash Data
Understanding Road Crash Data
The information about the occurrence of a road accident is first received, generally, in the Police Control Room. On receipt of this information a PCR ambulance vehicle is despatched to the accident site & information is sent to the concerned police station.
An investigating officer is sent by the police station to the road accident site. On the basis of the report of the investigating officer either the FIR (First Information Report) is registered or an entry is made in the daily diary. While FIR is generally registered in case of all fatal accidents yet in case of non-fatal accidents & minor accidents either an FIR is registered or an entry is made in the police station daily-diary (roznamcha).
FIR is generally not registered when the accident is not very serious and an on-the-spot compromise has been reached by the concerned parties. Sometimes, FIR may not be registered even in cases where a death has occurred, if no party other than the victim is involved and the accident has occurred entirely due to the fault of the victim. Thus, the incidence of road accidents cannot be studied by relying entirely on FIR figures.
The following measures are employed to study the incidence of road accidents:
- Cases of fatal road accidents where FIR is registered.
- Cases of fatal road accidents where FIR is not registered (proceedings initiated under section 174 Cr.P.C.).
- Cases of non-fatal road accidents where FIR is registered.
- Cases of non-fatal road accidents where FIR is not registered and instead a DDR entry is made (minor road accidents).
- Number of accident related calls received in the PCR. It is pertinent to mention that given the increasing popularity of mobile phones, a call is received by the Police Control Room almost invariably in every accident providing information about the occurrence. Thus this measure is best suited for estimating the total incidence of road accidents.














Impact of Traffic Law Enforcement on The Rate of Road Accidents
The impact of traffic law enforcement on the rate of road accidents can be assessed by studying the correlation between the total number of challans & the number of road accidents for different time periods. It may be hypothesized that if the enforcement strategies are correctly targeted then there should be a high negative correlation between the two sets of data. Simply put, this means that if our Challaning process is appropriately targeted then more challans should lead to fewer road accidents.
The table given below shows the correlation between monthly challan figures and the number of final road accidents for different time periods.
ROAD ACCIDENT IN UT CHANDIGARH FOR THE LAST 07 YEARS |
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Year |
Fatal Accidents |
Non-Fatal Accidents |
Person injured |
Person killed |
Total Number of Accidents |
2013 |
114 |
296 |
335 |
117 |
410 |
2014 |
124 |
245 |
335 |
131 |
369 |
2015 |
124 |
292 |
331 |
129 |
416 |
2016 |
144 |
284 |
329 |
151 |
428 |
2017 |
103 |
239 |
302 |
107 |
342 |
2018 |
97 |
219 |
300 |
98 |
316 |
2019 |
100 |
205 |
275 |
104 |
305 |
Challan Data (2004 to 2019)
Year |
No. of Challan issued |
2004 |
92190 |
2005 |
99099 |
2006 |
117134 |
2007 |
131503 |
2008 |
156185 |
2009 |
69070 |
2010 |
152939 |
2011 |
160641 |
2012 |
191046 |
2013 |
287501 |
2014 |
315809 |
2015 |
323592 |
2016 |
262231 |
2017 |
134820 |
2018 |
142797 |
2019 |
269855 |