CYR, Circuit Judge.

Appellant Henry C. Seekamp, Jr., challenges a summary judgment ruling disallowing his civil rights claims against various Maine State Police ("MSP") officers and their supervisor, based on an alleged Fourth Amendment violation stemming from a roadblock established by the defendant officers on the Maine Turnpike. We affirm the district court judgment.

I. [2] BACKGROUND

The material facts are not in dispute. At approximately 1:00 a.m. on July 14, 1994, Seekamp left his parents' residence in Scarborough, Maine, for the asserted purpose of picking up the pieces of his former life in Arkansas, where his relationship with a girlfriend and his career in the United States Air Force were abruptly ended by an automobile accident in April, 1993, which left him with a brain injury.

As Seekamp was proceeding south through a 50 m.p.h. zone on Route 1, his Chevrolet Monte Carlo was clocked at 63 miles per hour by Scarborough Police Sergeant Eugene O'Neill. After Seekamp failed to heed Sergeant O'Neill's signal to stop, O'Neill followed him into Saco where local police units joined the pursuit. Undeterred, Seekamp not only ignored the pursuing police vehicles but drove through the Maine Turnpike toll plaza at Saco, and onto a southbound lane, without stopping.

Alerted by Sergeant O'Neill, the MSP assumed further responsibility for the pursuit after learning that the driver of the Monte Carlo had eluded a police officer — a felony under Maine law. See Me. Rev. Stat. Ann., tit. 29-A, Section(s) 2501-A (1994) (repealed and replaced on January 1, 1995 by P.L. 1995, Ch. 65, codified as Me. Rev. Stat. Ann. tit. 29-A, Section(s) 2414(3) (1996)). Situated farther south near the Biddeford exit, MSP Trooper Ronald Michaud took up the pursuit at approximately 1:35 a.m. In an effort to force Seekamp to a stop, Trooper Michaud attempted a "rolling roadblock" by driving in front of the Monte Carlo then decelerating to force Seekamp to slow as well. Michaud soon abandoned the rolling roadblock when Seekamp responded with reckless attempts to get around the police cruiser.

At approximately 1:45 a.m., Trooper Michaud received a radio dispatch to the effect that Seekamp's father had advised that his brain-injured son was operating the Monte Carlo but was unarmed and neither suicidal nor under the influence of alcohol or drugs. Trooper Michaud considered the information both stale and unverifiable because Seekamp, Sr., could not have known what happened to his son after leaving the family home some 45 minutes earlier.

Meanwhile, MSP Sergeant Steven Beal and MSP Trooper Thomas Arnold had joined the pursuit north of the Wells exit. During this phase, Seekamp continued his erratic driving and was clocked by Trooper Michaud at speeds up to 97 miles per hour. About the same time and at Trooper Michaud's request, MSP Sergeant Beal directed MSP Trooper Larry McAfee to establish a roadblock north of the York toll plaza.

The roadblock was set up approximately 800 feet north of the York toll plaza, at the end of a 1500-foot straightaway. First, Trooper McAfee commandeered a flatbed tractor-trailer unit loaded with lumber sheathed in white plastic and directed that it be parked across the three southbound travel lanes, with its cab at the guardrail. Once in place, the tractor-trailer unit extended almost entirely across the southbound travel lanes. McAfee completed the blocking of the southbound travel lanes by parking his police cruiser at the rear of the tractor-trailer unit, with its headlights pointing north in the direction from which Seekamp would be approaching.

After turning on the cruiser's headlights, blue lights, and flashers, McAfee directed other tractor-trailers to park along the breakdown lane parallel to the blocked travel lanes. A fifty-foot gap was left between two of the tractor-trailer units parked in the breakdown lane, to permit vehicular traffic to proceed onto the breakdown lane and around the roadblock at slow speed, with police assistance. The headlights of the tractor-trailer unit at the northern end of the fifty-foot gap illuminated the avenue of vehicular egress along the breakdown lane.

The entire roadblock area was brightly illuminated by overhead street lights, the lights from Trooper McAfee's cruiser, and the headlights of the commandeered tractor-trailer blocking the southbound travel lanes. In addition, upon arrival at the roadblock site to assist Trooper McAfee, MSP Trooper Kevin Curran parked his cruiser in a southbound travel lane with its flashers on and its headlights directed at the roadblock as well.

What with the bright white plastic sheathing around the lumber on the tractor-trailer unit blocking the southbound travel lanes, the roadblock area was visible from approximately 1500 feet along the straightaway approaching the York toll plaza. As the Monte Carlo approached the roadblock, it appeared to brake several times yet failed to come to a complete stop even though the pursuing police cruisers had slowed to allow Seekamp room to maneuver. Ultimately, it collided with the rear axle of the tractor-trailer unit parked across the southbound travel lanes, causing Seekamp a hairline fracture of the hip and a severe facial laceration.

Seekamp brought suit under 42 U.S.C. §(s) 1983 against the subordinate MSP defendants, alleging Fourth Amendment violations; and against MSP Chief Alfred Skofield, Jr., for failure to provide adequate training and supervision. The district court awarded summary judgment to all defendants on the alternative grounds that the roadblock was reasonable and all defendants were entitled to qualified immunity. Seekamp v. Michaud, 936 F. Supp. 23, 28-30 (D. Me. 1996).

II. [13] DISCUSSION 1. Subordinate MSP Defendants

Seekamp claims the subordinate MSP defendants violated his Fourth Amendment right to be free from unreasonable seizures of his person. Since Seekamp acknowledges probable cause for a warrantless arrest, we need only determine whether the roadblock effected a Fourth Amendment seizure and, if so, whether it was reasonable.

A. Did the Roadblock Effect a Fourth Amendment Seizure?

The defendants contend that the roadblock did not constitute a Fourth Amendment seizure because it permitted vehicular traffic to maneuver through the fifty-foot opening designedly left between two of the tractor-trailer units parked in the breakdown lane to the right of the westernmost, southbound travel lane. We do not agree.

Almost a decade ago, the Supreme Court dealt with a vehicular collision involving a so-called "deadman's roadblock," designed and constructed to block off an entire roadway by placing an unilluminated tractor-trailer unit just beyond a curve and locating a police cruiser directly in front of the roadblock with its headlights aimed at the oncoming target vehicle, thereby blinding the driver to the impassable highway obstruction just around the curve. Brower v. Inyo County, 489 U.S. 593, 594 (1989). Brower nevertheless enunciates a rule that renders its egregious facts largely immaterial to the required Fourth Amendment inquiry into whether a roadblock "seizure" has occurred.

Writing for the Court, Justice Scalia explained that a Fourth Amendment seizure occurs "only when there is a governmental termination of freedom of movement through means intentionally applied," id. at 597; see also Landol-Rivera v. Cruz Cosme, 906 F.2d 791, 795 (1st Cir. 1990) (same), explaining that "it [is] enough for a seizure that a person be stopped by the very instrumentality set in motion or put in place to achieve that result." Brower, 489 U.S. at 599. The majority opinion went on to say:

[A] roadblock is not just a significant show of authority to induce a voluntary stop, but it is designed to produce a stop by physical impact if voluntary compliance does not occur. It may well be that respondents here preferred, and indeed earnestly hoped, that Brower would stop on his own, without striking the barrier, but we do not think it practicable to conduct such an inquiry into subjective intent. Nor do we think it possible, in determining whether there has been a seizure in a case such as this, to distinguish between a roadblock that is designed to give the oncoming driver the option of a voluntary stop (e.g., one at the end of a straightaway), and a roadblock that is designed precisely to produce a collision (e.g., one located just around a bend).

Id. at 598 (citations omitted).

Thus, for purposes of determining whether the roadblock in this case worked a Fourth Amendment seizure under Brower, the controlling consideration is not whether it was brightly illuminated, located at the end of a long straightaway, or afforded a restrictive avenue of egress. Rather, it constituted a Fourth Amendment seizure because Seekamp "was meant to be stopped by the physical obstacle of the roadblock — and . . . he was so stopped." Id. at 599.

The Brower standard for determining whether a Fourth Amendment seizure has occurred applies whenever "there is a governmental termination of freedom of movement through means intentionally applied." Id. at 597 (emphasis omitted). Thus, for example, if the MSP troopers had resorted to some other method, such as the use of spike mats, a Fourth Amendment seizure would have occurred provided Seekamp was "stopped by the very instrumentality set in motion or put in place to achieve that result." Id. at 599. See also Landol-Rivera, 906 F.2d at 796 ("It is intervention directed at a specific individual that furnishes the basis for a Fourth Amendment claim.").

B. Did the Roadblock Effect an Unreasonable Seizure?

We determine the "reasonableness" of a Fourth Amendment seizure by balancing "'the nature and quality of the intrusion on the individual's Fourth Amendment interests' against the countervailing governmental interests at stake." Graham v. Connor, 490 U.S. 386, 396 (1989) (quoting Tennessee v. Garner, 471 U.S. 1, 8 (1985)). The Fourth Amendment reasonableness test requires careful attention to the circumstances in the particular case. McCabe v. Life-Line Ambulance Serv., Inc., 77 F.3d 540, 546 (1st Cir.), cert. denied, 117 S.Ct. 275 (1996). Moreover, "a viable excessive force claim must demonstrate that the police defendant['s] actions were not objectively reasonable, viewed in light of the facts and circumstances confronting him and without regard to his underlying intent or motivation." Alexis v. McDonald's Restaurants of Massachusetts, Inc., 67 F.3d 341, 352 (1st Cir. 1995). See also Graham, 490 U.S. at 397.

Graham identifies three factors for evaluating whether the force used to effect a seizure was objectively reasonable: (1) the severity of the crime, (2) whether there was "an immediate threat to the safety of the officers or others"; and (3) whether the suspect was, inter alia, "actively resisting arrest or attempting to evade arrest by flight." Id. at 396. See Alexis, 67 F.3d at 352-53. Under these standards, we conclude that the district court correctly ruled that no rational jury could have found this roadblock unreasonable in the circumstances. See Seekamp, 936 F. Supp. at 28.

Seekamp contends that the roadblock was set up in a manner likely to kill him. See Brower, 489 U.S. at 599 (noting that the potential for recovery by Brower arose "only because the unreasonableness . . . allege[d] consist[ed] precisely of setting up the roadblock in such a manner as to be likely to kill him."). In that event, he argues, the more particularized analysis employed in Garner, 471 U.S. at 11, prohibiting deadly force against fleeing suspects who pose no immediate danger to the officers or the public, displaces the Graham analysis. We need only consider the evidence material to the threshold requirement that the roadblock be shown to have been set up in a manner likely to kill Seekamp.

Unlike the "deadman's roadblock" in Brower, 489 U.S. at 594 (unilluminated roadblock hidden beyond sharp curve), the Seekamp roadblock was brightly illuminated and located at the end of a long straightaway. The undisputed evidence established that it was visible from approximately 1500 feet to the north and that the Monte Carlo could have been brought to a complete stop without contacting the roadblock equipment but for its malfunctioning brakes. An adequate corridor for circumvention, though not readily apparent to vehicles approaching at excessive speed, had enabled many motorists to bypass the roadblock before Seekamp arrived. The Seekamp roadblock thus stands in marked contrast to the "deadman's roadblock" in Brower and the bullet which stopped the fleeing suspect in Garner. Compare Donovan v. City of Milwaukee, 17 F.3d 944, 949-50 (7th Cir. 1994) (differentiating, based on relative likelihood of death or serious injury, between the nondeadly force employed by ramming a police cruiser into a speeding car and the deadly force employed by driving a cruiser into a speeding motorcycle).

At the time Trooper McAfee established the roadblock, there existed probable cause to believe that Seekamp was a fleeing felon who had eluded local law enforcement officers in Scarborough and Saco and continued to elude the pursuing MSP troopers, see Me. Rev. Stat. Ann., tit. 29-A, Section(s) 2501-A (1994) (class C crime to elude officer at reckless speeds resulting in chase); see also Me. Rev. Stat. Ann. tit. 17-A, 1252(2)(C) (1964) (class C crime punishable by five years' imprisonment). Seekamp committed lesser crimes as well, which nonetheless endangered the pursuing officers and the traveling public: driving at 97 m.p.h. in a 65 m.p.h. zone on the Maine Turnpike, see Me. Rev. Stat. Ann. tit. 29-A, Section(s) 2074(3) (West Supp. 1996) (class E crime to exceed posted speed limit by more than 30 m.p.h.), and driving to endanger by maneuvering to evade the rolling roadblock, see Me. Rev. Stat. Ann. tit. 29-A, Section(s) 2413 (class E crime) (1964); see also Me. Rev. Stat. Ann. tit. 17-A, Section(s) 1252(2)(E) (1964) (class E crimes punishable by six months' imprisonment). Moreover, Seekamp had been evading apprehension throughout the chase. See Graham, 490 U.S. at 396 (evading arrest by flight a factor in determining reasonableness of seizure). Thus, the factors for determining reasonableness under Graham all weighed heavily in favor of employing nondeadly force to contain Seekamp.

Finally, even assuming the information transmitted to Trooper Michaud regarding the identity and condition of the driver of the Monte Carlo was neither stale nor unverifiable, the outcome under Graham would not be altered. Relying on firsthand observation and eyewitness reports from other law enforcement officers engaged in the pursuit, Trooper Michaud had probable cause to believe that a fleeing felon, driving at excessive speeds, had resorted to reckless efforts to evade the rolling roadblock and refused to stop. In these circumstances the information regarding the purported identity and condition of the person driving the Monte Carlo could not have affected the Graham analysis because the officers were faced with a situation which fully warranted a nondeadly roadblock based on the available objective information and the serious danger posed, without regard to the particular influences prompting the driver's dangerous actions. See id. at 396-97.

The Supreme Court has held, in a closely analogous context, that the constitutionality of a seizure based simply on reasonable suspicion does not depend exclusively on whether the police employed the "least intrusive [investigatory] means" available. United States v. Sokolow, 490 U.S. 1, 11 (1989) ("The reasonableness of the officer's decision to stop a suspect does not turn on the availability of less intrusive investigatory techniques."). See also United States v. LaFrance, 879 F.2d 1, 5 (1st Cir. 1989) (same). As the Court has explained:

A creative judge engaged in post hoc evaluation of police conduct can almost always imagine some alternative means by which the objectives of the police might have been accomplished. But "[t]he fact that the protection of the public might have been accomplished by less intrusive means does not itself render the search unreasonable." The question is not simply whether some other alternative was available, but whether the police acted unreasonably in failing to recognize or pursue it.

United States v. Sharpe, 470 U.S. 675, 686-87 (1985) (citations omitted) (upholding duration of investigatory stop as reasonable). Moreover, Seekamp proffers no reasonable alternative for resolving the safety threat posed by his persistent, irresponsible conduct. True, the defendant officers never resorted to the alternative Seekamp now proposes: abandoning their pursuit. Implicit in this suggestion, of course, is the premise that fleeing felons must be allowed to proceed on their reckless way without answering for their criminal conduct despite the ongoing risk to the traveling public. The defendant officers recognized that inaction on their part was not a responsible option in the circumstances. We do likewise by acknowledging that their actions in setting up the roadblock and effecting the seizure through nondeadly force were reasonable.

3. Supervisory Liability

Seekamp contends that MSP Chief Skofield failed to provide the defendant MSP troopers with adequate training and supervision. Supervisory liability under 42 U.S.C. §(s) 1983 cannot be predicated on a respondeat superior theory, Hegarty, 53 F.3d at 1379, but "'only on the basis of [the supervisor's] own acts or omissions[,]'" Sanchez v. Alvarado, 101 F.3d 223, 227 (1st Cir. 1996) (quoting Figueroa v. Aponte-Roque, 864 F.2d 947, 953 (1st Cir. 1989)) (alteration in original). As we pointed out almost a decade ago, a supervisor:

can be held liable . . . if (1) the behavior of [his] subordinates results in a constitutional violation, and (2) the [supervisor]'s action or inaction was "affirmative[ly] link[ed]" to that behavior in that it could be characterized as "supervisory encouragement, condonation or acquiescence" or "gross negligence amounting to deliberate indifference."

Lipsett v. University of Puerto Rico, 864 F.2d 881, 902 (1st Cir. 1988) (citations omitted). Moreover, the indifference required to support supervisory liability under section 1983 must be "deliberate, reckless or callous." Gutierrez-Rodriguez v. Cartagena, 882 F.2d 553, 562 (1st Cir. 1989). Thus, the "affirmative link" required between the action or inaction of a supervisor and the behavior of subordinates "contemplates proof that the supervisor's conduct led inexorably to the constitutional violation." Hegarty, 53 F.3d at 1380.

The present claim fails at a primitive level, as it meets neither test under Lipsett. First, because the behavior of the subordinate MSP officers was reasonable in the circumstances, see supra pt. II, B, the required predicate — a constitutional violation by the subordinate — cannot be established. See Lipsett, 864 F.2d at 902. Second, Seekamp adduced no evidence of supervisory indifference to proper police training on the part of defendant Skofield, let alone a level of indifference sufficient to sustain a section 1983 supervisory liability claim. See Sanchez, 101 F.3d at 229 (mere laxity insufficient to establish Section(s) 1983 supervisory liability). Quite the contrary, it is undisputed that each subordinate defendant received training on high speed pursuit and roadblocks, including a refresher course on MSP high speed pursuit policy, within the year preceding the incident sub judice which itself reflected no inadequate training whatsoever.

III. [39] CONCLUSION

The district court judgment is affirmed.