Affirmеd by published opinion. Chief Judge WILKINS wrote the opinion, in which Judge NIEMEYER and Judge DUNCAN joined.
Dennis Deon Smith appeals a district court order denying his motion to suppress evidence obtained by police following an investigatory stop of his vehicle. Because the officers possessed reasonable suspicion to stop Smith’s vehicle, we affirm.
I.
During the early morning of March 19, 2003, Durham, North Carolina police officers established a driver’s license checkpoint on Highway 54. The checkpoint, which was established in response to numerous break-ins and traffic violations in the area, was located at the bottom of a small hill and was operated by five officers, each with a patrol vehicle, from around 2:00 a.m. until shortly after 3:00 a.m. During this time, the police lights on each patrol vehicle were activated, and all motorists traveling in either direction were stopped.
At apрroximately 3:05 a.m., a vehicle traveling west on Highway 54 crested the hill about 985 feet from the checkpoint. According to the officers, the vehicle “appeared to slam on its brakes,” J.A. 24, 55, because its headlights “dipped down toward the ground,” id. at 55. The officers then observed the vehicle turn left onto a private gravel driveway leading to a single residence. The entrance to the driveway was located about 810 feet from the checkpoint.
Based on these observations, Officer Clyde McCoy drove his patrol vehicle to the driveway to investigate. When McCoy turned into the driveway, he observed that the suspect vehicle, a Lexus sedan, was stopped just before a sharp, left .curve in the driveway, approximately 240 feet from the highway. Either before or after entering the driveway, McCoy activated his police lights. 1 Rather than remaining *582 stopped, however, the Lexus “proceeded slowly around the curve.” Id. at 26. When McCoy drove around the curve, he saw the Lexus stopped at the end of the driveway with its lights off. 2
McCoy pulled up behind the Lexus and exited his patrol vehicle. He then approached the Lexus and asked its driver and only occupant, Smith, for his driver’s license. Smith responded that he did not have a license. McCoy asked Smith if he lived at the residence; Smith replied that he did not. Smith told McCoy that he had turned off of the highway “because he saw the patrol vehicles down the street and thought there was an accident.” Id. McCoy asked Smith to step out of his vehicle and handcuffed him. After verifying by radio that Smith’s license had been revoked, McCoy placed Smith under arrest.
A second police officer who had followed McCoy to the scene then asked Smith for permission to search the Lexus. Smith replied that “he didn’t care, it wasn’t his vehicle.” Id. at 60. Pоlice searched the vehicle and discovered a loaded magazine for a 9-millimeter handgun and a small quantity of cocaine base. After advising Smith of his Miranda rights, 3 officers asked him about the weapon to which the magazine belonged. Smith responded that he had thrown a handgun out of the vehicle near the entrance to the driveway. Although the officers found no handgun in the area Smith described, they eventually recovered a Ruger 9-millimeter pistol near the Lexus at the end of the driveway. Smith was then transported to the police station. After receiving his Miranda warnings in writing, Smith stated that the pistol belonged to a friend who had died and that he kept the weapon because he was uncertain what to do with it.
Smith was subsequently charged with possession of a firearm by a convicted felon, see 18 U.S.C.A. § 922(g)(1) (West 2000). He pleaded not guilty and moved to suppress the evidence obtained following the vehicle stop, arguing that the officers lacked reasonable suspicion to justify the stop. The district court held that the officers had reasonable suspicion to stop Smith’s vehicle because it (1) turned abruptly into a private driveway before reaching the police checkpoint and (2) moved — from a stopped position — around the curve of the driveway “as far as it could go,” J.A. 83, in response to McCoy’s police lights. The court cоncluded that based on the totality of the circumstances, the officers reasonably suspected that Smith was attempting to avoid the police checkpoint to conceal his involvement in criminal activity. The district court therefore denied Smith’s motion to suppress.
Smith subsequently entered a conditional guilty plea pursuant to a plea agreement. The district court sentenced Smith to 60 months in prison.
II.
Smith contends that the district court erred in denying his motion to suppress, arguing that the stop of his vehicle violated the Fourth Amendment because the officers lacked reasonable suspicion that he was engaged in criminal activity. Whether the stop of Smith’s vehicle was based on reasonable suspicion is a mixed
*583
question of law and fact that we review de novo.
See Ornelas v. United States,
The Fourth Amendment prohibits “unreasonable searches and seizures.” U.S. Const, amend. IV. And, it is well settled that a search conducted without a warrant is per se unreasonable unless it falls within one of the “well-delineated exceptions” to the warrant requirement.
Katz v. United States,
A.
Emphasizing the general principle that individuals havе a right to avoid encounters with the police,
see, e.g., United States v. Burton,
We find instructive the decision of the Supreme Court in
Illinois v. Wardlow,
The Supreme Court reversed. The Court initially noted that Wardlow’s presence in a high-crime area, while not dis-positive, was a relevant factor in the rea
*584
sonable suspicion analysis.
See id.
at 124,
The Supreme Court observed that its holding was consistent with the principle that “when an officer, without reasonable suspicion or probable cause, approaches an individual, the individual has a right to ignore the рolice and go about his' business.”
Id.
(citing
Florida v. Royer,
[U]nprovoked flight is simply not a mere refusal to cooperate. Flight, by its very nature, is not “going about one’s business”; in fact, it is just the Opposite. Allowing officers confronted with such flight to stop the fugitive аnd investigate further is quite consistent with the individual’s right to go about his business or to stay put and remain silent in the face of police questioning.
Id.
Wardlow
also rejected the argument that flight from police cannot establish reasonable suspicion of criminal activity because that flight may be motivated by innocent reasons. The Court pointed out that the conduct observed by the officers in
Terry
— two individuals pacing in front of a store, peering into the window, and conferring with each other — “was ambiguous and susceptible of an innocent explanation.”
Id.
Nevertheless, because this conduct “also suggested that the individuals were casing the store for a planned robbery,”
Terry
held that the officers could stop the individuals “to resolve the ambiguity.”
Id.
“In allowing such detentions,” the Court explained,
“Terry
accepts the risk that officers may stop innocent people.”
Id.
at 126,
We believe that the principles of
Wardlow
apply to evasive conduct by drivers approaching a police roadblock. As with an individual who encounters police on foot, “[hjeadlong flight” оr other “nervous, evasive behavior” in response to a roadblock may contribute to reasonable suspicion that the driver is engaged in criminal activity.
Id.
at 124,
B.
Having concluded that evasive behavior by a motorist approaching a police roadblock may contribute to a reasonable suspicion of criminal activity, we now consider whether, based on the totality of the circumstances here, .the officers possessed a reasonable suspicion that Smith was engaged in criminal activity. For the reasons that follow, we conclude that they did.
The officers observed Smith’s vehicle brake abruptly and turn suddenly into a private gravel driveway. Smith’s erratic driving and the nature of the road onto which he turned could have reasonably suggested to the officers that Smith was attempting to evade the roadblock rather than simply “going about [his] business,”
Wardlow,
Smith cites
United States v. Ogilvie,
III.
For the reasons set forth above, we affirm the order of the district court denying Smith’s motion to suppress evidence.
AFFIRMED
Notes
. The record is unclear on this point. Officer McCoy testified that he activated his police lights after he entered the drivewаy and saw the Lexus stopped there, but a second officer who followed McCoy to the driveway testified that the officers drove from the checkpoint to the driveway with their lights already on. The district court did not resolve this issue, concluding that it did not affect the resolution of Smith’s motion to suppress. We agree *582 with this assessment and thus will not address the issue further.
. It is not clear from the record how far the Lexus traveled from its original stopped position just before the curve until reaching its final position at the end of the driveway. Nevertheless, it appears that the vehicle moved, at most, approximately 120 feet.
.
See Miranda
v.
Arizona,
. McCoy could not recall whether Smith's vehicle lights were off when he was stopped before the curve in the driveway, but McCoy testified that Smith's lights were off when he finally stopped at the end of the driveway.
. The district court concluded that because Smith moved his vehiclе around the curve in the driveway in response to McCoy’s police lights, Smith was not seized for Fourth Amendment purposes until he finally stopped at the end of the driveway. Smith challenges this finding, asserting that he was seized when McCoy first pulled into the driveway because at that point McCoy displayed his police lights and blocked Smith from exiting the driveway. Smith thus contends that the district court erred in considering the subsequent movement of his vehicle around the curve аs an additional factor supporting reasonable suspicion. We reject this argument.
The Supreme Court has held that a suspect is not seized within the meaning of the Fourth Amendment until officers apply physical force or the suspect submits to a show of authority.
See California v. Hodari D.,
. Smith also cites a numbеr of state decisions that he claims "have generally followed the rule of Lester and Ogilvie." Br. of Appellant at 13. We note that most of these decisions turn on their specific facts and generally distinguish between situations in which the record reflects evasive conduct by the defendant and those in which it does not. Moreover, Smith emphasizes two factors that some of these decisions have identified as relevant to determining whether a driver is attempting to evade a roadblock: (1) the distance between the driver's turn and the roadblock (here, 810 feet) and (2) whether notice of the roadblock was posted (here, it was not). Although these factors might be important in other cases, we decline to place significant weight on them here. The officers’ observations of Smith's multiple evasive actions in response to the presence of police strongly suggested that he was attempting to avoid the roadblock for other than innocent reasons.
