Escajeda v. City of San Diego CA4/1 ( 2023 )


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  • Filed 7/31/23 Escajeda v. City of San Diego CA4/1
    NOT TO BE PUBLISHED IN OFFICIAL REPORTS
    California Rules of Court, rule 8.1115(a), prohibits courts and parties from citing or relying on opinions not certified for
    publication or ordered published, except as specified by rule 8.1115(b). This opinion has not been certified for publication
    or ordered published for purposes of rule 8.1115.
    COURT OF APPEAL, FOURTH APPELLATE DISTRICT
    DIVISION ONE
    STATE OF CALIFORNIA
    JOHN ESCAJEDA, a Minor, etc. et al.,                                 D080157
    Plaintiffs and Appellants,
    v.                                                         (Super. Ct. No. 37-2018-00008994-
    CU-PO-CTL)
    CITY OF SAN DIEGO,
    Defendant and Respondent.
    APPEAL from a judgment of the Superior Court of San Diego County,
    Keri G. Katz, Judge. Affirmed.
    Gusdorff Law, Janet Gusdorff; Vaziri Law Group, Siamak Vaziri and
    Elizabeth C. Munro for Plaintiffs and Appellants.
    Mara W. Elliott, City Attorney, Travis M. Phelps, Assistant City
    Attorney, Meghan A. Wharton, Dave E. Abad and Tyler L. Krentz, Deputy
    City Attorneys, for Defendant and Respondent.
    Pedestrian John Escajeda was paralyzed and suffered massive internal
    injuries after being struck by a car being driven by Ismael Angeles.
    Surveillance video from a nearby bus indicates that Angeles entered the
    intersection against a red traffic light. He has since fled and cannot be
    located.
    Escajeda’s attorneys filed this lawsuit against the City of San Diego
    (City) and others alleging that the intersection constituted a dangerous
    condition of public property. After the City moved for summary judgment, he
    refined his theories, contending (1) the traffic signal light malfunctioned,
    causing Angeles and Escajeda to believe they each had the right of way,
    and/or (2) the City violated engineering standards by programming the signal
    with a 1.0 second (as opposed to 1.4 second) red clearance interval.1
    The trial court granted the City’s motion for summary judgment,
    determining there was no substantial evidence that the lights malfunctioned
    at the time of the accident and the City was entitled to design immunity
    (Gov. Code,2 § 830.6) for designing the signal lights with a 1.0 second red
    light interval.
    On independent review, we agree with these rulings. The City met its
    summary judgment burden by showing that Angeles entered the intersection
    against a red light, and Escajeda did not offer evidence creating a triable
    issue to the contrary. Thus, there was no evidence upon which a jury could
    find that the signal lights malfunctioned so as to cause Angeles and Escajeda
    to believe they each had the right of way. Additionally, the City established
    1     A red clearance interval is the amount of time that all of the signals at
    an intersection stay red following the end of a yellow signal for one of the
    streets and before the conflicting signal turns green.
    2     Undesignated statutory references are to the Government Code.
    2
    it was entitled to design immunity under Hampton v. County of San Diego
    (2015) 
    62 Cal.4th 340
     (Hampton). Accordingly, we affirm the judgment.
    FACTUAL AND PROCEDURAL BACKGROUND
    Ocean View Boulevard runs generally east and west. It intersects with
    South 32nd Street (the Intersection), as depicted below:
    On September 11, 2017 at about 6:53 a.m., Angeles was driving
    eastbound on Ocean View at about 33 miles per hour as he approached the
    Intersection. Escajeda was standing on the curb at the southeast corner,
    intending to cross Ocean View and walk northbound on South 32nd Street.
    At the same time, an MTS bus was travelling westbound on Ocean View,
    approaching the Intersection. One of its cameras recorded the scene,
    including the traffic light facing westbound vehicles. The video, a screenshot
    of which is copied below, shows the signal light for westbound traffic at the
    Intersection was red at 6:53:03 a.m.
    3
    The same camera recorded Angeles’s car going eastbound through the
    intersection while the light was red for westbound traffic. The frame copied
    below, three seconds later, captured the moment before impact:
    4
    According to an investigating police officer, because the video shows the
    traffic light was red for westbound traffic, then it also must have been red for
    eastbound vehicles (i.e., Angeles’s direction of travel) as well. An accident
    reconstructionist calculated that Angeles was about 100 feet from the limit
    line when his light cycled to red. He continued to travel eastbound for about
    2.2 seconds against the red light.
    The bus’s camera recorded the moment of impact. The force launched
    Escajeda’s body 84 feet. His lawyers inform us that he survived but is
    completely paralyzed, nourished by a feeding tube and unable to
    communicate.
    Angeles, who was driving on a suspended license, told police at the
    scene that “[t]he sun was in his eyes and it was bright when he got to the
    [traffic] light and could not see.” Somewhat inconsistently, he also claimed
    his light was yellow. In any event, he admits never seeing Escajeda,
    explaining that the sun in his eyes, his windshield was wet and dirty, and his
    wipers “did not work well.” That was an understatement. A police officer
    described his wiper blades as “rotted.”3
    Escajeda commenced this action in 2018, and in November 2019 filed
    the operative complaint (Complaint) against Angeles, the City of San Diego,
    and others.4 Because only the City’s motion for summary judgment is
    involved in this appeal, we limit our discussion to those claims. The
    Complaint generally alleges that the Intersection is a dangerous condition of
    public property in a multitude of ways. It also claims that the crosswalk
    3     Angeles plead guilty to reckless driving in violation of Vehicle Code
    section 23105, subdivision (a).
    4    The other named defendants are the County of San Diego and
    Southwest Traffic Signal Services, Inc.
    5
    signal and traffic control lights “malfunctioned and were improperly operated
    and timed.”
    In May 2021, the City moved for summary judgment on the grounds
    that as a matter of law: (1) the Intersection did not constitute a dangerous
    condition; (2) even if it does, design immunity applies; and (3) under section
    830.8, the City is immune for not installing signs or warnings.5
    In his opposition, Escajeda assumed for purposes of the motion that he
    began crossing the street as soon as the pedestrian signal “turned to walk,”
    and that Angeles struck him after running the red light.6 That scenario
    would be consistent with the bus video, as well as the statement made by
    Escajeda’s brother to police that “they always push the pedestrian signal
    button at that intersection and always wait for the signal to change before
    crossing the street.”
    Supported by a declaration from a traffic engineer, the centerpiece of
    Escajeda’s opposition was that certain standards required a 1.4 second red
    light interval at the Intersection, but the City had instead designed the
    system with a 1.0 second delay. He also presented a declaration from an
    accident reconstructionist, who stated that with a 1.4 second delay, Angeles
    “would have had additional time” to steer or brake “thereby avoiding the
    accident.” Similarly, Escajeda’s “departure from the sidewalk” would have
    been delayed, “giving him additional time to react . . . and avoid the
    5     The trial court found it unnecessary to consider this last point, as do
    we.
    6      Escajeda’s opposition states, “Plaintiff John Escajeda walked into the
    intersection as soon as he was perceivably able to and his light turned to
    walk.[fn.] At the same time, Mr. Angeles’s light had turned to red and he
    collided with Mr. Escajeda.”
    6
    accident,” and he “would not have been as far out into the road at the time of
    impact.”
    While the motion was pending, additional evidence was produced,
    including a 15 second video of the Intersection’s traffic lights that a police
    officer recorded on the day of the accident. The trial court allowed additional
    discovery and briefing to deal with it. Seven months elapsed between the
    filing of the motion and the hearing.
    By the time of the hearing in December 2021, Escajeda’s theories had
    evolved and he now asserted:
    1. The City was not entitled to design immunity for
    programming the signal lights with a 1.0 second delay
    because (a) the red light clearance interval was not
    specifically approved; (b) there was no evidence of who
    approved the plan; and (c) using a 1.0 second delay was not
    the product of “considered engineering judgment.”
    2. There was substantial evidence that the City had
    attempted to repair and/or upgrade the pedestrian signal
    light at the Intersection as recently as one day before the
    accident. This, in combination with other evidence created
    a triable issue that the pedestrian signal light
    malfunctioned.
    3. Angeles “said the light was never red for him”—which
    created a triable issue that the signal lights malfunctioned,
    leading Angeles and Escajeda to believe they each had the
    right of way.
    After conducting a hearing, the trial court ruled that the City was
    entitled to design immunity and there was no evidence creating a triable
    issue that the signal lights malfunctioned.
    7
    DISCUSSION
    A.   The Trial Court Correctly Determined There Was No Substantial
    Evidence That a Signal Light Malfunction Caused the Accident
    Under Code of Civil Procedure section 437c, subdivision (c), a motion
    for summary judgment shall be granted if all the papers submitted show
    there is no triable issue as to any material fact and the moving party is
    entitled to judgment as a matter of law. A defendant meets its burden on
    summary judgment by showing that the plaintiff cannot prove its causes of
    action, or by establishing a complete defense to the plaintiff's causes of
    action. (Id., subd. (p)(2).) The burden then shifts to the plaintiff to show a
    triable issue of fact material to the causes of action or defense. (Ibid.) We
    evaluate a summary judgment ruling independently. (Saelzler v. Advanced
    Group 400 (2001) 
    25 Cal.4th 763
    , 767.) We give no deference to the trial
    court’s ruling or reasoning and decide only whether the correct result was
    reached. (Carnes v. Superior Court (2005) 
    126 Cal.App.4th 688
    , 694.)
    To establish that a signal light malfunction caused the accident, there
    must be evidence that the traffic signals simultaneously indicated to Angeles
    and Escajeda that each had the right of way. This would happen only if
    Angeles entered the Intersection on a green or yellow light—and at the same
    time—Escajeda’s signal indicated something other than “Don’t Walk.”
    On this theory, the City carried its burden on summary judgment by
    offering admissible evidence that Angeles entered the Intersection on a red
    light. The bus’s video shows a red light for westbound traffic on Ocean View
    Boulevard at 6:53:03 a.m. The accident occurred about three seconds later.
    Obviously, the video does not show the signal light that would have been
    facing Angeles, going eastbound on Ocean View. But a police officer
    8
    experienced in investigating traffic collisions stated that if the light was red
    for westbound traffic, it must have also been red for eastbound traffic too:
    “Based on the signal light timing at this intersection, if the
    lights cycled to yellow, then to red for westbound traffic,
    then the light cycled to yellow then to red for eastbound
    traffic also.”
    The officer concluded, therefore, that Angeles entered the intersection
    against a red light, stating:
    “When Angeles’[s] light cycled to red, he was approximately
    105 feet away from the limit line. He continued to travel
    eastbound after his signal light had been red for
    approximately 2.1895 seconds.
    “Angeles said the sun was in his eyes and it was bright
    when he got to the light and he could not see. . . .
    “When the pedestrian signal cycled to ‘walk,’ [Escajeda]
    began to cross the intersection in the marked crosswalk
    from south to north on South 32nd Street.
    “Angeles drove through the intersection violating the
    circular red traffic signal and collided into [him].”
    The City supplemented this evidence in two ways. First, the police
    officer who first responded to the accident stated that he checked the traffic
    signals and saw no malfunctions. Second, the City submitted a declaration
    from Duncan Hughes, a traffic engineer. He explained that the signals are
    designed with a fail-safe circuit to prevent conflicts, such as a situation where
    a driver travelling eastbound (like Angeles) and a pedestrian walking
    northbound (such as Escajeda), would each simultaneously be given the right
    of way. Hughes stated that this device “is hard-wired” to prevent conflicting
    phases. If there is any “problem with a controller, the monitor itself, the 24V
    power supply, of if signal light wiring is removed or damaged,” the conflict
    monitor “automatically puts the signal into all-red flash mode until the issue
    9
    is resolved and the monitor is reset.” Based on the bus video and the
    sequencing of signals at the Intersection, Hughes opined that “the traffic
    signals were operating properly at the time of the collision.”
    The City also submitted a declaration from John Fisher, a registered
    traffic engineer with over 50 years’ experience in the planning, design, and
    operation of traffic control devices. In addition to conducting a site
    inspection, he reviewed police reports pertaining to the accident, traffic
    surveys, maintenance records, and applicable engineering standards. Like
    Hughes, he explained that the conflict monitor “operates in the fail-safe mode
    and ensures that there are no instances of conflicting signal displays.” Fisher
    also concluded, “No systemic traffic signal malfunction was identified in the
    maintenance records . . . .” He examined records showing that “City signal
    electricians responded to six service requests in the one-year period prior to
    the [i]ncident, involving traditional and routine situations typically
    encountered in urban areas.” He further opined that “[w]ork performed by
    traffic signal technicians at the intersection prior to the [i]ncident and for the
    two days after [it] . . . identified no signal system malfunctions.”
    On appeal, Escajeda contends that none of this matters, and a triable
    issue exists based on a “plethora” of evidence that “a signal malfunctioned” at
    the Intersection. Chief among this abundant evidence, he claims, is that
    Angeles “testified he went through the intersection under a green light, which
    is first person percipient evidence of a malfunction at the time of the
    accident.” (Italics added.) Indeed, appellate counsel maintains that the trial
    court clearly erred because the judge “does not even make mention of the
    driver’s testimony.” In his reply brief, Escajeda again claims that both the
    trial court and the City “ignore the driver’s testimony that he drove through
    the intersection under a green light.”
    10
    This sounds like a good argument. We often refer to the example of
    conflicting witness testimony about whether a traffic light was red or green
    as a prototypical question of fact. (See, e.g., Schmier v. Supreme Court (2000)
    
    78 Cal.App.4th 703
    , 712.) Here, however, Escajeda’s briefs contain no record
    cite for Angeles’s supposed “testimony.”7 That alone would allow us to
    disregard it. (Cal. Rules of Court, rule 8.204(a)(1)(C); see Ragland v. U.S.
    Bank National Assn. (2012) 
    209 Cal.App.4th 182
    , 195.) We have nevertheless
    searched the appellant’s appendix for Angeles’s testimony—but there is none.
    What we find instead is a footnote in Escajeda’s trial court opposition, which
    states that his lawyers cannot locate Angeles and as a result have been
    unable to take his deposition.
    That leaves us with Angeles’s lawyer-prepared interrogatory answers
    as the closest thing to testimony. There, he stated “[u]pon information and
    belief” that his light was yellow (i.e., not green). Answering “on information
    and belief” is lawyer-speak that could be nothing more than wishful thinking.
    In some sense, it is consistent with the explanation Angeles gave to police at
    the scene—he never saw Escajeda because the sun was in his eyes, his
    windshield was wet and dirty, and his wipers did not work.
    Accordingly, the evidence on whether Angeles’s light was red when he
    entered the Intersection consists of (1) video showing the westbound light for
    Ocean View Boulevard was red; (2) expert declarations stating that because
    the light for westbound traffic was red, so too would have been the one for
    7     Page 26 of Escajeda’s opening brief cites “3RT 69:24-26.” But that page
    contains argument by the City’s lawyer, not any testimony from Angeles or
    anyone else. Escajeda nevertheless doubles down in his reply brief,
    asserting, “The City and the trial court ignore the driver’s testimony that he
    drove through the intersection under a green light.” The only record cite
    given is “(Opening br., at 26),” which is no cite at all.
    11
    eastbound; (3) expert declarations establishing that a fail-safe device
    precluded conflicting signals; and (4) Angeles’s interrogatory response that
    effectively admits he drove into the Intersection at full speed and effectively
    blind. Like the trial court, we can only conclude on this record that Angeles
    entered the intersection on a red light and there was no substantial evidence
    from which a reasonable trier of fact could decide otherwise.8
    Turning his attention to the pedestrian signal, Escajeda insists that a
    15 second video taken by a police officer and another video taken by
    Escajeda’s uncle a few days after the incident show the pedestrian signals
    malfunctioning. He also points to other evidence that seemingly shows the
    pedestrian signals were repaired or upgraded the day before the accident.
    Not surprisingly, the City disputed all of this evidence. But even
    crediting it for purposes of summary judgment, it does not change the
    outcome. Given the undisputed evidence that Angeles ran the red light,
    whether Escajeda’s pedestrian signal functioned properly simply is not
    relevant. If Angeles entered the Intersection on a red light, then no matter
    what the pedestrian signal showed, it could not have been a cause of the
    collision. This is perhaps best illustrated by the table below.
    8      Escajeda contends that whether the traffic signals were functioning is
    “questionable” because police officers at the scene did not examine all of the
    lights and did not “watch [the] signal all the way through.” That officers at
    the scene could have done a more thorough investigation of the signal lights
    does not undercut the probative value of other evidence showing the signals
    cycled correctly and were equipped with a failsafe device to prevent
    conflicting signals.
    12
    Signal Light for       Pedestrian Signal for       Result
    Eastbound Ocean        Northbound on South
    View Boulevard         32nd Street
    Red                    “Walk”                      Not a malfunction.
    Red                    “Don’t Walk”                A malfunction, but if the
    pedestrian abides by the
    signal, he does not step off
    the curb.
    Red                    Something ambiguous,        If interpreted as “Walk,”
    not clearly “Walk” or       not a malfunction because
    “Don’t Walk”                the opposing traffic has a
    red light. If interpreted
    as “Don’t Walk,” a
    malfunction, but if the
    pedestrian abides by the
    signal, he remains at the
    curb.
    For a signal malfunction to have caused this accident, both Angeles and
    Escajeda must have been given the right of way. Having determined there is
    no substantial evidence that Angeles’s light was anything other than red,
    evidence of a malfunctioning pedestrian signal is irrelevant. Even were we to
    assume the evidence created a triable issue that the pedestrian signal
    malfunctioned, as we have explained it would not be a material factual
    dispute—and only material triable issues preclude summary judgment.
    (Romero v. American President Lines, Ltd. (1995) 
    38 Cal.App.4th 1199
    , 1203
    [“ ‘The presence of a factual dispute will not defeat a motion for summary
    judgment unless the fact in dispute is a material one.’ ”].)
    B.     The Trial Court Correctly Determined That Design Immunity Applies
    A public entity may be liable for injuries caused by dangerous
    conditions of public property. (§§ 830, 835.) However, section 830.6,
    13
    commonly referred to as “design immunity,” precludes liability for any injury
    caused by “the plan or design of . . . , or an improvement to, public property.”
    (Advisory Com. notes, foll. § 830.6.) “A public entity claiming design
    immunity must establish: (1) a causal relationship between the plan or
    design and the accident; (2) discretionary approval of the plan or design prior
    to construction; and (3) substantial evidence supporting the reasonableness of
    the plan or design.” (Hampton, supra, 62 Cal.4th at p. 343.) In a proper case,
    design immunity may be resolved on a motion for summary judgment.
    (Grenier v. City of Irwindale (1997) 
    57 Cal.App.4th 931
    , 939–940.)
    Escajeda does not dispute the first element—a causal relationship
    between the plan or design and the accident. Indeed, the Complaint alleges
    that Escajeda was injured as a “legal, direct and proximate result” of the
    dangerous condition of public property. (See Cayley v. Nunn (19876) 
    190 Cal.App.3d 300
    , 306 [defendant moving for summary judgment can rely on
    allegations in plaintiff’s complaint].)
    As for the discretionary approval element based on the 1.0 second red
    interval, a public entity can establish this element with a declaration stating
    the plans were approved by the entity’s engineer, and the plans themselves
    show they were signed by the engineer in such capacity. (See Laabs v. City of
    Victorville (2008) 
    163 Cal.App. 4th 1242
    , 1263 [city established discretionary
    approval where city engineer declared another city engineer had approved
    plans, and where plans themselves showed they had been signed and
    approved by second engineer in his official capacity].) In this case, the City
    met its summary judgment burden on this element by filing a declaration
    from Duncan Hughes, the Deputy Director of the City’s Traffic Engineering
    Division, which stated:
    14
    1. Plans for constructing the signal lights at the
    Intersection were approved in July 1962 “by City
    representatives from the Engineering Department prior to
    the start of construction, indicating that the design was
    approved by the City.” The signature sheet of these plans
    was lodged.
    2. In 1981, plans for constructing the traffic signal at the
    Intersection were approved by “City representatives” from
    the engineering department prior to the start of
    construction, “indicating that the design was approved by
    the City.” This construction replaced “almost all of the
    equipment, conduit, and wiring” that was installed in 1962.
    The signature page of these plans was lodged.
    3. Additional work was done in November 1997 under
    plans signed by a representative of the City engineering
    department, “indicating that the design was approved by
    the City.” The plans called for the installation of new
    conduit and communications cable underground. The work
    was completed in 1998 and had “no impact on the traffic
    signal design from the 1981 plans.” The signature pages of
    these plans were lodged.
    4. In June 2011, new sewer mains and pedestrian ramps
    were constructed on Ocean View Boulevard and vicinity,
    which was completed in January 2014. Nothing in the
    scope of that work affected the operation of the traffic
    signal equipment as constructed through the 1981 plans.
    The plans were lodged.
    5. The City installed “high visibility . . . crosswalks and
    advance limit lines at the [I]ntersection” in December 2016.
    Hughes approved and signed the plans himself.
    On the third element of design immunity, the City also carried its burden
    of establishing the reasonableness of its approvals. In deposition testimony,
    Hughes stated that a 1.0 second red clearance interval is “right in the middle
    of the California [Manual on Uniform Traffic Control Devices (MUTCD)]
    range of 0.1 to 2 seconds.” He noted that in the exercise of “engineering
    15
    judgment,” for “unusual configurations,” that time period could be increased,
    but “we default to a 1.0 second red clear at the end of every phase.” Although
    recognizing there are other “recommended practice[s],” Hughes explained the
    City’s view that “1.0 second is adjustable upwards in special circumstances”
    based on the judgment of the particular engineer who is evaluating the
    particular signal. He concluded that the Intersection is, therefore, in
    compliance with the current California MUTCD guidelines.
    The City bolstered this showing with a declaration from its expert,
    Fisher, who stated that a red clearance interval of 1.0 second “met and
    exceeded the guidelines” of California MUTCD. He further explained that
    “[t]he conflict monitor operates in the fail-safe mode and ensures that there
    are no instances of conflicting signal displays.”9
    On appeal, Escajeda contends the 1.0 second all red delay was “too short”
    and “there is a clear dispute of material fact” whether it complied with the
    California MUTCD. Opposing summary judgment, he submitted a
    declaration from Richard Haygood, a traffic engineer, who opined that
    engineering practices must be used in setting the delay, and the Institute of
    Transportation Engineers (ITE) establishes a formula that in this case
    required the delay to be 1.4 seconds. Haygood criticized City engineers,
    stating that their adoption of a 1.0 second delay as a default rule was not
    reasonable nor did it comport with engineering practices.
    9     He also reviewed accident statistics and concluded that from 2008 to
    the time of the incident, “there was only one prior collision which involved an
    eastbound or westbound vehicle on Ocean View Boulevard colliding with a
    pedestrian in a crosswalk.” The pedestrian in that accident was on a scooter,
    admitted he was not paying attention, and crossed against a steady red hand
    “Don’t Walk” signal.
    16
    In urging reversal, Escajeda contends there was “no evidence” that the
    City exercised “any engineering judgment” regarding the red light interval.
    He maintains that the California MUTCD was amended in 2009 and 2014,
    requiring the City to “reassess” the 1.0 second default setting “under the
    revised ITE test.” Because Hughes admitted that the City did not do so,
    while at the same time insisting that they relied on the California MUTCD as
    the expression of engineering judgment, Escajeda maintains there is a triable
    issue that the City failed to follow its own standards in setting the red light
    interval at the Intersection. He concludes that this “absence of judgment”
    precludes application of design immunity.
    In the past this might have been a good argument, but it is now
    foreclosed by the Supreme Court’s decision in Hampton.10 There, a driver
    injured in an automobile accident and his wife sued the County of San Diego
    for a dangerous condition of public property. They alleged that the
    intersection where the collision occurred “afforded inadequate visibility under
    applicable County design standards” because of a high embankment.
    (Hampton, 
    supra,
     62 Cal.4th at p. 344.) In opposing a motion for summary
    judgment based on design immunity, the plaintiffs argued there were
    disputed issues regarding discretionary approval because the plans for the
    intersection did not show the embankment. (Id. at p. 345.) They asserted
    that an engineer can only make a discretionary decision to approve a design,
    despite its nonconformity with governing standards, if the engineer is aware
    of the nonconformity. According to plaintiffs, “ ‘an engineer who approves a
    nonconforming design on the mistaken belief it conformed to governing
    10    Although the City frequently cites Hampton in its brief, Escajeda chose
    to not discuss or cite it in his reply.
    17
    standards has acted through inadvertence, not discretion.’ ” (Id. at pp. 348–
    349.)
    The Supreme Court disagreed, explaining that the plaintiffs’ argument
    conflated two different elements of design immunity. The court held that the
    discretionary approval element of section 830.6 “does not implicate the
    question whether the employee who approved the plans was aware of design
    standards or was aware that the design deviated from those standards.”
    (Hampton, supra, 62 Cal.4th at p. 343.) Nor does the discretionary approval
    element require the entity to show that the employee who approved the plans
    had authority to disregard applicable standards. (Ibid.) Rather, the
    discretionary approval element may be established “either by evidence of
    appropriate discretionary approval or evidence that the plan conformed with
    previously approved standards.” (Id. at p. 350.)
    Thus, the discretionary approval element of design immunity asks only
    whether a person given discretion to approve the design or plan actually
    approved it. (Hampton, supra, 62 Cal.4th at p. 357.) Courts do not inquire
    whether the City engineer who approved the design was aware of any change
    in standards. Nor do we consider whether it was wise to approve the plan.
    Here, for example, the only issue on this second element of design
    immunity is whether someone with discretion to approve the design of the
    signal lights at the Intersection did in fact approve it. (Hampton, supra, 62
    Cal.4th at p. 357.) As explained above, the evidence offered by the City on
    this point established such approval—and on appeal Escajeda does not
    contend otherwise. His argument is that there were contested issues of fact
    “as to whether the City actually had a plan or used engineering judgment
    given changed directives in the California MUTCD”—not that the engineer
    18
    approving the plans lacked authority to do so. (Capitalization and boldface
    omitted.)
    Only when considering the third and final element of design immunity—
    reasonableness of the design—does a court consider whether an employee
    approved a design that deviates from applicable standards, and whether it
    was wise to approve the plan. (Hampton, supra, 62 Cal.4th at pp. 351, 357.)
    But significantly, section 830.6 requires only that “the trial or appellate court
    determine[ ] that there is any substantial evidence upon the basis of which
    (a) a reasonable public employee could have adopted the plan or design or the
    standards therefor . . . .” In other words, to establish the third and final
    element of design immunity, the government does not have to prove that the
    design was reasonable—it only has to introduce sufficient evidence to sustain
    a finding that it was, even if that evidence is disputed.
    In this important way, “a case involving design immunity does not
    function as a typical summary judgment case would.” (Menges v. Department
    of Transportation (2020) 
    59 Cal.App.5th 13
    , 21 (Menges).) In a typical
    summary judgment motion, if the court determines there is conflicting
    evidence on a material issue, the motion must be denied. But here, where the
    third element of design immunity is the issue, section 830.6 provides that the
    government merely has to introduce sufficient evidence to sustain a finding
    in its favor, even if that evidence is disputed. (Menges, at p. 21.)
    Substantial evidence to establish this third element may consist of
    (1) “[d]iscretionary approval of the design plans themselves [citation];
    [(2)] the expert opinion of a civil engineer as to the reasonableness of the
    design [citation]; or [(3)] evidence the design or plan complies with prevailing
    professional standards [citation]. ‘A mere conflict in the testimony of expert
    witnesses provides no justification for the matter to go to a lay jury who will
    19
    then second-guess the judgment of skilled public officials.’ ” (Menges, supra,
    59 Cal.App.5th at p. 21.) Thus, in this unique context, the City is entitled to
    judgment if there is any reasonable basis upon which a public official could
    have approved the design, even if the evidence on that question is conflicting
    and would otherwise present a triable issue of fact.11
    Here, the City introduced expert opinion evidence that its approval of the
    signal design was reasonable. Fisher’s declaration states, “the plans for the
    Incident location were reasonable such that competent professionals could
    have approved them.” Elaborating, he concluded, “there were no defective
    roadway features, traffic controls, sight distance limitations, street lighting
    issues or evidence of signal system malfunctions.” Further, “California
    MUTCD-compliant traffic control devices were present as approved by
    qualified engineers.” This satisfies the third element of the design immunity
    defense.12
    Design immunity “does not necessarily continue in perpetuity.” (Cornette
    v. Dept. of Transportation (2001) 
    26 Cal.4th 63
    , 66.) In seeking reversal,
    Escajeda further contends that the trial court ignored evidence of “changed
    conditions”—e.g. increased traffic volumes and prevailing speeds—that
    reasonably would have required engineers to reassess whether the 1.0 second
    red light delay interval was appropriate. This argument, however, is waived
    11     Especially in his reply brief, Escajeda’s argument misses this crucial
    point. He asserts, “On summary judgment, the question is not which expert
    is correct or most believable. Instead, the question is whether there are
    disputes of fact . . . .” That may be true in every other summary judgment
    context, but not with respect to the third element under section 830.6.
    12    Because of this disposition, it is unnecessary to address the City’s
    contention that the undisputed evidence established the plans conformed to
    all applicable engineering standards.
    20
    by Escajeda’s failure to raise it in the trial court. In response to the City’s
    separate statement of undisputed facts, Escajeda stated he “does not contend
    there were any changed roadway conditions” that would cause the City to
    lose design immunity. Accordingly, we agree with the City that it cannot be
    raised for the first time on appeal. A party may not change positions and
    adopt new and different theories on appeal; it is unfair to the trial court and
    manifestly unjust to the opposing party. (Ernst v. Searle (1933) 
    218 Cal. 233
    ,
    240–241; Magallanes de Valle v. Doctors Medical Center of Modesto (2022) 
    80 Cal.App.5th 914
    , 924.)
    DISPOSITION
    The judgment is affirmed. The City is entitled to costs incurred on
    appeal.
    DATO, J.
    WE CONCUR:
    HUFFMAN, Acting P. J.
    DO, J.
    21