Title
Tan vs. JAM Transit
Case
G.R. No. 183198
Decision Date
Nov 25, 2009
A jitney-bus collision led to a negligence claim; SC applied *res ipsa loquitur*, holding JAM Transit liable for damages due to driver's traffic violations.

Case Summary (A.M. No. P-17-3639)

Key Dates and Procedural Posture

Accident: March 14, 1997.
Trial court (RTC, Branch 27, Sta. Cruz, Laguna) Decision: December 20, 2006 (ruled for petitioner).
Court of Appeals Decision: June 2, 2008 (reversed RTC, dismissed complaint).
Supreme Court Decision: November 25, 2009 (GR No. 183198) — petition for review under Rule 45; RTC decision reinstated with modification on damages. Applicable constitutional framework: 1987 Philippine Constitution (decision date is 1990 or later).

Applicable Law and Doctrinal Framework

Constitutional basis: 1987 Philippine Constitution governs judicial review and the exercise of judicial power in cases decided in 1990 or later (as required by the case facts).
Statutory and civil-law provisions invoked: Rules of Court, Rule 45 (petition for review on certiorari); Republic Act No. 4136 (Land Transportation and Traffic Code), Section 41 (restrictions on overtaking and passing, including double yellow line and prohibition at intersections); Civil Code provisions on quasi-delict and employer liability — Articles 2176 and 2180; Article 2224 (temperate damages); Article 2208(2) (basis for attorney’s fees under certain circumstances). Case law and evidentiary principles governing res ipsa loquitur and documentary/photographic evidence were also applied.

Factual Allegations by Petitioner

Petitioner alleged that her jitney, lawfully driven by Ramirez and properly signaled while about to turn left into a barangay feeder road, was struck by the JAM bus which overtook and collided with the jitney, causing the jitney to turn turtle, destroying cargo (balut, salted and quail eggs), and injuring the driver and helper. Petitioner sought compensatory damages for vehicle and cargo, moral damages, attorney’s fees, and costs.

Defendant’s Pleadings and Counterclaim

JAM admitted ownership of the bus and that Dimayuga was its driver but denied negligence, asserting instead that Ramirez’s gross negligence caused the accident. JAM counterclaimed for damages to its bus, loss of income, and attorney’s fees. JAM produced as witness only Dimayuga, who testified that a vehicle overtook from the right and collided with his bus such that he could not evade.

Trial Evidence Presented for Petitioner

Witness testimony included petitioner, Ramirez (jitney driver), PO3 Escares (police investigator), and a mechanic who prepared an estimate. Documentary and physical evidence offered by petitioner included: police certification based on the police blotter (Exhibit B), a police sketch of the scene (Exhibit F / I), photographs of the scene (Exhibits E, E-1 to E-6), an estimate of damage from Plantilla Motors (Exhibit D), receipts for medical expenses (Exhibit F), registration of the jitney (Exhibit G), and the bus driver’s license (Exhibit H). Ramirez’s testimony was limited and lacked a detailed recollection of the sequence of collision.

Trial Evidence Presented for Respondent

JAM offered testimony by its bus driver, Edgardo (Eddie) Dimayuga, who testified that he was driving at about 40 km/h when a vehicle overtook from the right, and he could not avoid the collision. JAM offered no documentary evidence to contradict petitioner’s physical evidence or to substantiate its version.

RTC Decision and Reasoning

The RTC applied the doctrine of res ipsa loquitur and found negligence on the part of the JAM bus driver. The RTC concluded that the circumstantial evidence (police sketch, photographs showing relative vehicle positions, and police report) supported an inference that the bus overtook improperly in a no-overtaking area, struck the left side of the jitney, and caused the accident. The RTC awarded actual damages for the jitney and cargo, medical expenses, moral damages, attorney’s fees and costs.

Court of Appeals Reversal and Basis

The Court of Appeals reversed, holding that petitioner had access to direct evidence (notably Ramirez and his helper) and therefore could not invoke res ipsa loquitur where direct testimony was available but not presented or where the record was silent as to overtaking. The CA also discounted the police blotter’s probative value and found insufficient proof to show that the JAM bus overtook the jitney or that Dimayuga was negligent. The CA emphasized that res ipsa loquitur is a procedural evidentiary doctrine that does not dispense with the proof of negligence and that the requisite conditions for its application were not satisfied.

Doctrine of Res Ipsa Loquitur — Definition and Requisites

Res ipsa loquitur is an evidentiary rule permitting an inference or presumption of negligence from the mere occurrence of an event when four conditions are essentially satisfied: (1) the accident is of a kind that ordinarily does not occur in the absence of someone’s negligence; (2) the instrumentality causing the accident was under the exclusive control or management of the defendant; and (3) the possibility of contributory conduct by the plaintiff that would make the plaintiff responsible has been eliminated. The doctrine is not substantive law but a mode of proof that shifts the burden of producing an explanation to the defendant once the plaintiff has established the circumstantial case.

Supreme Court’s Assessment of the Evidence and Application of Res Ipsa

The Supreme Court disagreed with the CA’s conclusion that petitioner had adequate access to direct evidence but failed to present it in a manner that bars application of res ipsa. The Court found Ramirez’s testimony insufficiently detailed and noted the absence of other eyewitnesses. The Court gave weight to the photographs (admitted and authenticated) and the police sketch prepared by PO3 Escares, finding them faithful representations of the scene immediately after the collision. The photographs showed both vehicles on the opposite lane, a double continuous yellow centerline, and damage consistent with the bus’s front-right striking the jitney’s left. From these circumstantial facts, the Court concluded that (a) overtaking by the bus in a prohibited zone and at an intersection was the most logical explanation, (b) such an accident would not ordinarily occur without negligence, and (c) Dimayuga had exclusive control over the bus. The possibility that Ramirez’s conduct caused the collision was not sufficiently established by evidence. Accordingly, the Court applied res ipsa loquitur, placing the burden on JAM to explain the occurrence, which JAM failed to do.

Employer Liability and Presumption in Quasi-Delict

Having found the bus driver liable for negligence, the Court applied Civil Code principles on quasi-delict and employer responsibility. Article 2176 establishes liability for acts/omissions causing damage by fault or negligence; Article 2180 makes the employer liable for acts of employees performed within the scope of their tasks. A presumption juris tantum arises that the employer failed in the duty of selection or supervision (culpa in eligendo or culpa in vigilando). To escape liability, an employer must present convincing proof that it exercised the diligence of a good father of a family in selecting and supervising employees. JAM did not adduce such proof; it relied only on Dimayuga’s testimony and presented no documentary evidence. Consequently, the Court held JAM solidarily liable with Dimayuga.

Assessment and Awards for Damages

The Supreme Court modified the RTC’s

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