about David Crowder album Collision disambiguation refimprove date March 2011 Infobox Album See Wikipedia WikiProject Albums Name A Collision Type Album Artist David Crowder Band Cover DavidCrowderBandACollision.jpg Released startdate 2005 09 27 Recorded Genre Christian rock , Contemporary worship music Worship Length 72 59 Label sixstepsrecords Producer David Crowder Band Last album Sunsets & Sushi br 2005 This album A Collision br 2005 Next album B Collision br 2006 Album ratings rev1 Allmusic rev1score Rating 4.5 5 ref Allmusic class album id r795606 pure url yes Allmusic review ref rev2 The Fish rev2score Rating 5 5 ref http www.thefish.com music reviews 11619194 A Collision or 3 2b4 3d7 The Fish review ref rev3 Jesus Freak Hideout rev3score Rating 5 5 ref http www.jesusfreakhideout.com cdreviews ACollision.asp Jesus Freak Hideout review ref rev4 Patrol Magazine rev4score 7.8 10 ref http www.patrolmag.com 2007 04 19 david sessions david crowder band a collision Patrol Magazine review ref Automatically generated by DASHBot A Collision or 3 4 7 is the third full length studio album by David Crowder Band recorded for sixstepsrecords , released in September 2005. Foreverandever Etc is on the Digital Praise PC game Guitar Praise . Track listing Source Official David Crowder site ref cite web url http www.davidcrowderbandstore.com store product 101 A Collision title A Collision on official site accessdate 23 March 2011 ref Tracklist title1 Everybody Wants to Go to Heaven A Walk Down Stairs length1 1 03 title2 Come and Listen length2 2 48 note2 Also featured on Pour Over Me . title3 Here is Our King length3 3 45 title4 Wholly Yours length4 4 29 title5 Foreverandever Etc length5 3 23 title6 A Quiet Interlude length6 0 47 title7 A Beautiful Collision length7 3 39 title8 Soon I Will Be Done With the Troubles of the World length8 0 47 title9 Be Lifted or Hope Rising length9 4 ... Band DEFAULTSORT Collision, A Category 2005 albums Category David Crowder Band albums ... more details
Collision avoidance may refer to Collision avoidance spacecraft Collision avoidance networking Collision avoidance system in automobiles Aircraft collision avoidance systems Positive train control Automatic Identification System for collision avoidance in water transport dab ... more details
Collision resolution may refer to Hash table Collision resolution Hash table implementations in computer science Collision response in classical mechanics disambig ... more details
Wiktionary collision A collision is an isolated event in which two or more bodies exert relatively strong forces on each other for a relatively short time. This may specifically refer to Traffic collision , two vehicles colliding Mid air collision , two planes colliding Ship collision , two ships colliding Collision may also refer to tocright Arts Collision band , a heavy metal band in the 1990s Collision film Collision film , a 2009 documentary of a debate about Christianity between Christopher Hitchens and Douglas Wilson A Collision , a 2005 album by David Crowder Band Collision TV series Collision TV series is a 2009 miniseries on ITV1 Collision CSI Miami Collision CSI Miami , an episode of CSI Miami Collision Lost Collision Lost , a 2005 episode of the television show Lost Collision Heroes Collision Heroes , a 2006 episode of the television show Heroes Collisions album Collisions album , a 2005 album by Calla Collision, a multi award winning abstract short film by Max Hattler 2005 Collision novel Collision novel , a 2008 thriller novel by Jeff Abbott Science Continental collision in plate tectonics Computers Collision detection , algorithms for detecting collisions between objects in a simulation Hash collision , when a cryptographic hash function returns the same output for two different inputs Networking and telecommunications Collision domain , a physical network segment where data packets can collide Carrier sense multiple access with collision avoidance CSMA CA , used for example with wireless LANs Carrier sense multiple access with collision detection CSMA CD , used with Ethernet Late collision , a specific type of collision that shouldn t occur on properly operating networks See also lookfrom collision intitle collision Collide disambiguation disambiguation cs Kolize de Kollision fr Collision homonymie he lt Kolizija hu tk z s egy rtelm s t lap pt Colis o desambigua o ru uk ... more details
Satellite collision may refer to The collision between DART spacecraft DART and MUBLCOM One of the collisions between a Progress spacecraft Progress and Mir The 2009 satellite collision disambig ... more details
A collision is the situation that occurs when two or more demands are made simultaneously on equipment that can handle only one at any given instant. ref Source from Federal Standard 1037C and from MIL STD 188 ref It may refer to Collision domain , a physical network segment where data packets can collide Carrier sense multiple access with collision avoidance , CSMA CA used for example with wireless LANs Carrier sense multiple access with collision detection , CSMA CD used with Ethernet Late collision , a specific type of collision that shouldn t occur on properly operating networks References Reflist Category Telecommunications ru ... more details
Unreferenced date December 2009 Orphan date December 2009 A remote collision , in CSMA CD computer network s, is a collision that occurs when a frame having length less than minimum length and with an incorrect FCS Frame Check Sequence , is transmitted. This frame causes a collision at the remote end which will not be detected by the transmitter. DEFAULTSORT Remote Collision Category Ethernet ... more details
Unreferenced date January 2008 Collision hull also collision mesh or collision geometry is a Video game computer gaming term for an abstraction abstract representation of the 3D computer graphics 3D world which the player game player can see. The collision hull provides the logic behind player movement and special actions in the game. It is usually coterminous with the visible representation, but simplified and considered internally distinct by the game engine . It also determines where the player can be hit . That is called the Hit Box. For example, what would appear as a stairway in the visible Fictional universe game world may be represented by a flat polygon computer graphics polygon in the collision hull. See also Convex hull compu graphics stub Category Video game development ... more details
A collision domain is a section of a network where data packet s can Collision telecommunications collide with one another when being sent on a shared medium or through repeater s, in particular, when using early versions of Ethernet . A network collision occurs when more than one device attempts to send a packet on a network segment at the same time. Collisions are resolved using carrier sense multiple access or a variant thereof in which the competing packets are discarded and re sent one at a time. This becomes a source of inefficiency in the network. ref name Lammle cite book last Lammle first Todd title CCNA Study Guide edition Fourth edition publisher Sybex Inc. year 2004 isbn 0 7821 4311 3 ref Only one device in the collision domain may transmit at any one time, and the other devices in the domain listen to the network in order to avoid data collisions. Because only one device may be transmitting at any one time, total network bandwidth is shared among all devices. Collisions also decrease network efficiency on a collision domain if two devices transmit simultaneously, a collision occurs, and both devices must retransmit at a later time. Collision domains are found in a network hub hub environment where each host segment connects to a hub that represents only one collision domain and only one broadcast domain . Collision domains are also found in wireless network s such as Wi Fi . Modern wired networks use a network switch to eliminate collisions. By connecting each device directly to a port on the switch, either each port on a switch becomes its own collision domain in the case of half duplex links or the possibility of collisions is eliminated entirely in the case of full duplex links. References reflist Category Network architecture Category Ethernet cs Kolizn dom na de Kollisionsdom ne es Dominio de colisi n fr Domaine de collision it Dominio di collisione he hu tk z si tartom ny pl Domena kolizyjna pt Dom nio de colis o ru ... more details
A collision zone occurs when tectonic plate s meeting at a convergent boundary both bear continental lithosphere . As continental lithosphere is usually not subduction subducted due to its relative low density, the result is a complex area of orogeny involving Fold geology folding and thrust fault ing as the blocks of continental crust pile up above the subduction zone. Examples Notable examples include Philippine Mobile Belt Molucca Sea Collision Zone Izu Collision Zone cn date September 2011 Ishikari Collision Zone cn date September 2011 Mount Fuji Collision Zone cn date September 2011 Carlin Unconformity Daisetsuzan Collision Zone cn date September 2011 Luzon Taiwan Collision Zone cn date September 2011 Indus Yarlung suture zone Eastern Anatolian collision zone ref R G k, R., et. al. Lithospheric structure of the continent continent collision zone eastern Turkey, Geophysical Journal International, 2007, Volume 169, Issue 3, Pages 789 1378 ref Banda Arc Australian collision zone ref Karig, Daniel E., et. al., Nature and distribution of deformation across the Banda Arc Australian collision zone at Timor, GSA Bulletin January 1987 v. 98 no. 1 p. 18 32 ref See also List of tectonic plate interactions References reflist Category Tectonics tectonics stub sv Kollisionzon ... more details
distinguish car accident head on collision Infobox single Name Head on Collision Cover Head on Collision.jpg Artist New Found Glory from Album Sticks and Stones New Found Glory album Sticks and Stones Released October 15, 2002 Format CD single Recorded 2001 Genre Pop punk Length 3 42 Label Drive Thru Records Drive Thru , MCA Records MCA Writer New Found Glory Producer Neal Avron Last single My Friends Over You br 2002 This single Head on Collision br 2002 Next single Head on Collision is the second single from New Found Glory s third studio album, Sticks and Stones New Found Glory album Sticks and Stones . The single peaked at number 28 on the Billboard Modern Rock Tracks chart. ref Allmusic class artist id p384007 charts awards billboard singles pure url yes allmusic New Found Glory Charts & Awards Billboard Singles Bot generated title ref . Track list Head on Collision Head on Collision Radio Session Something I Call Personality Radio Session Head on Collision Understatement Use in Popular Media Pop punk band All Time Low got their name from lyrics in Head On Collision. References Reflist New Found Glory DEFAULTSORT Head On Collision Category 2002 singles Category New Found Glory songs 2000s rock single stub uk Head on Collision ... more details
cleanup date January 2008 Late Collision in computer network ing is a type of collision found in the Carrier sense multiple access with collision detection CSMA CD Protocol computing protocol standard . If a collision error occurs after the first 512 bits of data are transmitted by the transmitting station, ref name 802 3 2008 IEEE http standards.ieee.org getieee802 802.3.html 802.3 2008 Section 1 , http ieee.org IEEE section 5.2.2.1.10 ref a late collision is said to have occurred. Importantly, late collisions are not re sent by the Network card NIC unlike collisions occurring before the first 64 octets it is left for the upper layers of the protocol stack to determine that there was loss of data. As a correctly set up CSMA CD network link should not have late collisions, the usual possible causes are full duplex half duplex mismatch, exceeded Ethernet cable length limits, or defective hardware such as incorrect cabling, non compliant number of hubs in the network, or a bad NIC. References reflist DEFAULTSORT Late Collision Category Ethernet ... more details
Collision was an American Heavy metal music heavy metal band from New York City that formed in 1979. Playing in relative obscurity for nearly 13 years, they were signed by Columbia Records Chaos Columbia after they heard one of the band s Demo music demos . The band then released their first full length album entitled Collision in 1992. In 1995, they released their second and last full length album, Coarse , with Sony Music Entertainment Sony Music Distributing . An EP named Collision was released in 1998, then the group disbanded. They re emerged in 2005 re named Kollizion with a self titled EP, but again disbanded. Members Nik Chinboukas vocals guitar Gustavo J. Vitureira bass Alex Kyriazis drums Discography Studio Albums Collision 1992 Coarse 1995 EPs Collision 1998 Kollizion 2005 External links http www.allmusic.com artist collision p21985 Collision at Allmusic.com Category Musical groups established in 1979 Category Musical trios Category Heavy metal musical groups from New York ... more details
Unreferenced date December 2009 Orphan date December 2009 A local collision , in CSMA CD computer network s, is a collision that occurs at the Network Interface Card NIC as opposed to on the wire. On Unshielded twisted pair UTP cable a local collision is detected on the local segment only when a station detects a signal on the RX pair at the same time it is sending on the TX pair. Since the two signals are on different pairs there is no characteristic change in the signal. Collisions are only recognized on UTP when the station is operating in duplex telecommunications half duplex . The only functional difference between half and duplex telecommunications full duplex operation in this regard is whether or not the transmit and receive pairs are permitted to be used simultaneously. It is important to know that a Network Interface Card NIC cannot detect local collisions without attempting to send information. DEFAULTSORT Local Collision Category Ethernet ... more details
Main Collision theory Collision frequency is defined in chemical kinetics , in the background of theoretical kinetics , as the average number of collisions between reacting molecules per unit of time. Its symbol is Z. For a gas phase bimolecular reaction Z is math Z N A sigma AB sqrt frac 8 k B T pi mu AB math N sub A sub is the number of atoms B per unit volume m 3 sub AB sub is the reaction cross section physics cross section k sub B sub is Boltzmann constant sub aB sub is the reduced mass of the reactants References http www.iupac.org goldbook C01166.pdf IUPAC Goldbook definition of Collision Frequency Category Chemical kinetics ... more details
Infobox film name A Railway Collision image ARailwayCollision.jpg image size caption Screenshot from the film director Walter R. Booth producer Robert W. Paul writer narrator starring music cinematography editing studio Paul s Animatograph Works distributor released film date 1900 3 runtime 22 secs country Film UK language Silent film Silent budget A Railway Collision AKA A Railroad Wreck is a 1900 in film 1900 UK British Short subject short silent film silent drama film , directed by Walter R. Booth , featuring an express train crashing into a goods train and plunging down an embankment. The film, in which, model trains are used to simulate a train crash on an embankment, according to Michael Brooke of BFI Screenonline, is one of the earliest examples of this technique in practice ref name BFIso01 cite web title A Railway Collision first Michael last Brooke coauthors url http www.screenonline.org.uk film id 711484 index.html work BFI Screenonline Database date accessdate 2011 04 24 ref References reflist External links imdb title id 0212460 title A Railroad Wreck CinemaoftheUK DEFAULTSORT Railway Collision, A Category 1900 films Category British films Category Black and white films Category British silent short films ... more details
300px Cartoon of a tectonic collision between two continents Continental collision is a phenomenon of the plate ... collision is a variation on the fundamental process of subduction , whereby the subduction zone is destroyed, mountains produced, and two continents sutured together. Continental collision is known ..., behave during subduction. Continental collision is not an instantaneous event, but may take several tens of millions of years before the Geologic fault faulting and Fold geology folding caused by collision stop. Collision between India and Asia has been going on for about 50  million years already and shows no signs of abating. Collision between East and West Gondwana to form the East African Orogen took about 100  million years from beginning 610  Ma to end 510  Ma . Collision ...  million years long. Subduction zone the collision site The process begins as two continent s different ... subducted as part of the downgoing plate during collision, defined as buoyant crust entering a subduction ... begin to grow in the collision zone. There are other modes of mountain formation and orogeny but certainly continental collision is one of the most important. Rain fall and snow fall increase ... than 10 of the life of a typical collision zone . River systems form, and glaciers may grow on the highest ... s. Crustal thickening provides one of two negative feedbacks on mountain growth in collision ... once the collision is complete and the two continents are completely sutured. Convergence between the continents ... in the subduction zone to either side of the collision as well as beneath the impinging continent. The pace of mountain building associated with the collision is measured by radiometric dating of igneous rocks or units that have been metamorphosed during the collision and by examining the record of sediments ... can be measured with GPS . Far field effects The effects of the collision are felt far beyond the immediate site of collision and mountain building. As convergence between the two continents continues ... more details
rebound from each other with the same kinetic energy as before a collision. Five atoms are colored red to facilitate following their motions. An elastic collision is an encounter between two bodies ... energy into other forms. During the collision of small objects, kinetic energy is first converted ... degrees of freedom with each collision. At any one instant, half the collisions are, to a varying extent, inelastic collision s the pair possesses less kinetic energy in their translational motions after the collision than before , and half could be described as super elastic possessing more kinetic energy after the collision than before . Averaged across the entire sample, molecular collisions ... a collision may also play a role. Equations One dimensional Newtonian File Prof Walter Lewin ..., u sub 1 sub and u sub 2 sub the velocities before collision, and v sub 1 sub and v sub 2 sub the velocities after collision. The conservation of the total momentum demands that the total momentum before the collision is the same as the total momentum after the collision, and is expressed by the equation ... v 2 u 2 math . The latter is the trivial solution, corresponding to the case that no collision has taken ... s After collision Ball 1 velocity &minus 8.5 m s Ball 2 velocity 1.5 m s Property math v 1 v 2 u 2 u ... 2 u 2 u 1 math the relative velocity of one particle with respect to the other is reversed by the collision the average of the momenta before and after the collision is the same for both particles Image Elastischer sto .gif frame center Elastic collision of equal masses As can be expected, the solution ... with constant translational velocity. Image Elastischer sto 2.gif frame center Elastic collision of masses ... by the collision The center of mass at time math t math before the collision and at time math t math after the collision is given by two equations math bar x t frac m 1 cdot x 1 t m 2 cdot x 2 t m ... of the center of mass before and after the collision are math v bar x frac m 1 u 1 m 2 u 2 m 1 m 2 ... more details
In cryptography, a collision attack on a cryptographic hash tries to find two arbitrary inputs that will produce the same hash value, i.e. a hash collision . In contrast to a preimage attack , neither the hash value nor one of the inputs is specified. There are roughly two types of collision attacks Collision attack find two arbitrary different messages m1 and m2 such that hash m1 hash m2 . Prefix collision attack given two different prefixes p1, p2 find two appendages m1 and m2 such that hash p1 m1 hash p2 m2 where is the concatenation operation . Classical collision attack Mathematically stated, a collision attack finds two different messages m1 and m2 , such that hash m1 hash m2 . In a classical collision attack, the attacker has no control over the content of either message, but they are arbitrarily ... attacks are possible by employing cryptanalysis to specific hash functions. When a collision attack ... as broken . The NIST hash function competition was largely induced by published collision attacks ... 27, 2008. ref and SHA 1 . The collision attacks against MD5 have improved so much that it takes ... TIFF and PDF , are vulnerable to collision attacks by using colliding hash values as indexed ... prefix collision attack An extension of the collision attack is the chosen prefix collision attack ... than a classical collision attack. Mathematically stated, given two different prefixes p1, p2 , the attack ... . In 2007, a chosen prefix collision attack was found against MD5, requiring roughly 2 sup ... collision attack was published in December 2008 when a group of security researchers published a forged ... advantage of a prefix collision attack against the MD5 hash function. This meant that an attacker could ... hash functions do not rely on collision resistance , thus collision attacks do not affect ... name collision qna cite web date 2005 02 15 title Hash Collision Q&A publisher Cryptography Research ... different documents A and B, that have an identical hash value collision . Mallory then sends document ... more details
A naming collision is a circumstance where two or more identifiers in a given Namespace computer science namespace or a given Scope programming scope cannot be unambiguously Name resolution resolved , and such unambiguous resolution is a requirement of the underlying system. Example XML element names In XML , element names can be originated and changed to reflect the type of information contained in the document. This level of flexibility may cause problems if separate documents encode different kinds of information, but use the same identifiers for the element names. For example, the following sample document defines the basic semantics for a person document and a book document. Both of these use a title element, but the meaning is not the same source lang xml root person fname Nancy fname lname Davolio lname title Dr. title age 29 age person book title Ms. title isbn ABCD1234567 isbn book root source For an application to allow a user to correctly query for and retrieve the title element, it must provide a way to unambiguously specify which title element is being requested. Failure to do so would give rise to a naming collision on the title element as well as any other elements that shared this unintended similarity . In the preceding example, there is enough information in the structure of the document itself which is specified by the root element to provide a means of unambiguously resolving element names. For example, using XPath root person title the formal title for a person root book title the title of a book Collision domain Original research date September 2007 The term collision domain may also be used to refer to a system in which a single name or identifier is open to multiple interpretations by different layers or processing. The notion of a namespace has been widely adopted as a software programming practice to avert undesired clashes. See also Namespace XML Namespaces Delimiter Delimiter collision Delimiter collision References references Category Programming ... more details
Dablink For collision detection on networks see CSMA CD Collision detection typically refers to the computational ... has applications in robotics . In addition to determining whether two objects have collided, collision ... of intersecting points . ref Ericson, Christer. Real time Collision Detection. Elsevier, 2005, p. 13. ref Collision response deals with simulating what happens when a collision is detected see physics engine , ragdoll physics . Solving collision detection problems requires extensive use of concepts ... thumb Billiards balls hitting each other are a classic example applicable within the science of collision ... and elastic collision s. An initial description of the situation would be given, with a very precise ..., so long as the resulting simulation is satisfying to the game players. Collision detection in physical simulation Physical simulators differ in the way they react on a collision. Some use the softness of the material to calculate a force, which will resolve the collision in the following time steps ... simulators estimate the time of collision by linear interpolation, Rollback data management roll back the simulation, and calculate the collision by the more abstract methods of conservation laws . Some iterate the linear interpolation Newton s method to calculate the time of collision with a much higher precision than the rest of the simulation. Collision detection utilizes time coherence to allow ... an inelastic collision, special states of sliding and resting can occur and, for example, the Open ... function one of two ways, where the collision is detected A priori and a posteriori philosophy a posteriori after the collision occurs or A priori and a posteriori philosophy a priori before the collision occurs . In addition to the a posteriori and a priori distinction, almost all modern collision ... and trajectories of these objects are somehow fixed to account for the collision. We say that this method is a posteriori because we typically miss the actual instant of collision, and only catch the collision ... more details
it to strike other vehicles, objects, or pedestrians . After the collision, the involved vehicles ... of a vehicle may sustain far more severe injuries than an otherwise similar front or rear collision ... provide protection during the first collision, it may leave occupants unprotected during subsequent collisions in the crash. However, the first collision in a crash typically has the most severe forces ... collisions.html Side Impact Collision Images Category Car safety ... more details
Refimprove date December 2009 Collision resistance is a property of cryptographic hash functions a hash function is collision resistant if it is hard to find two inputs that hash to the same output that is, two inputs a and b such that H a H b , and a b . ref name GoldwasserBellare Shafi Goldwasser Goldwasser, S. and Mihir Bellare Bellare, M. http cseweb.ucsd.edu mihir papers gb.html Lecture Notes on Cryptography . Summer course on cryptography, MIT, 1996 2001 ref rp 136 Every hash function with more inputs than outputs will necessarily have collisions. Consider a hash function such as SHA 256 that produces 256 bits of output from an arbitrarily large input. Since it must generate one of 2 sup 256 sup outputs for each member of a much larger set of inputs, the pigeonhole principle guarantees that some inputs will hash to the same output. Collision resistance doesn t mean that no collisions exist simply that they are hard to find. The birthday paradox birthday paradox places an upper bound on collision resistance if a hash function produces N bits of output, an attacker who computes only 2 sup N 2 sup hash operations on random input is likely to find two matching outputs. If there is an easier method than this brute force attack , it is typically considered a flaw in the hash function. ref name GoldwasserBellare rp 141 Cryptographic hash function s are usually designed to be collision resistant. But many hash functions that were once thought to be collision resistant were later broken. MD5 and SHA 1 in particular both have published techniques more efficient than brute force for finding collisions. ref cite journal author M.M.J. Stevens date June 2007 title On Collisions for MD5 ... secure cryptographic hash function provably secure . Rationale Collision resistance is desirable for several ... the same version of a file when they in fact did not. See also Collision attack Preimage attack NIST ... Collision Resistance Category Cryptography ... more details
or liquid rarely experience perfectly elastic collision s because kinetic energy is exchanged between ... of freedom with each collision. At any one instant, half the collisions are &ndash to a varying extent &ndash inelastic the pair possesses less kinetic energy after the collision than before , and half could be described as super elastic possessing more kinetic energy after the collision than ... swings to its largest angle. In nuclear physics , an inelastic collision is one in which the incoming ... for the velocities after a one dimensional collision are math v a frac C R m b u b u a m a u a m b ... we have an elastic collision if it is 0 we have a perfectly inelastic collision, see below. In a center ... to the tangent line plane at the point of contact. Perfectly inelastic collision Image Inelastischer sto .gif a completely inelastic collision between equal masses In a perfectly inelastic collision, i.e. ... kinetic energy is equal to the total kinetic energy before the collision in a center of momentum ... the collision is zero. In this frame most of the kinetic energy before the collision is that of the particle ... External link Oblique inelastic collision between two homogeneous spheres see article The Art of Billiards Play on http www.regispetit.com bil praa.htm which gives the general vector equations of a collision ... fr Collision in lastique it Urto anelastico he ht Kolizyon inelas pt Colis o inel stica ... more details
Missing information investigations and laws following ship collisions date September 2010 Ship collision is the structural impact between two ships or one ship and a floating or still object such as an iceberg ref http www.icedata.ca icedb ice bergs2 01e.html Database Of Ship Collisions With Icebergs Bot generated title ref . Ship collisions are of particular importance in marine accidents. Some reasons for the latter are The loss of human life. The environmental impact of oil spill s, especially where large oil tanker tanker ships are involved. Financial consequences to local communities close to the accident. The financial consequences to shipowner s, due to ship loss or penalties. Damage to coastal or off shore infrastructure, for example collision with bridge s. As sea lane s are getting more congested and ship speeds higher, there is a good possibility that a ship may experience an important accident during her lifetime. Higher speeds may cause larger operational loads, like slamming , or excessively severe loads, for example during a collision. Denser sea routes increase the probability of an accident in particular a collision involving ships or ships and shore or offshore structures. Due to extremely large masses and relatively high velocities the energy involved in such an accident is astonishing the collision energy of a 10,000 tonne RoRo passenger at a speed of 30kn, is equivalent to 10,000 cars of approximately 1 tonne each, impacting a small area with a speed of approximately 55km h slightly higher than the speed used in Euro NCAP side impact tests for cars . ref http www.euroncap.com Content Web Page 106f41f7 d486 46bf bfbc 80fb4c79f679 side impact.aspx Euro NCAP For safer cars Side impact Bot generated title ref Notes reflist See also Ramming Category Naval architecture Category Ship construction Category Maritime incidents Category Law of the sea Category Ships sunk in collisions water transport stub nl Aanvaring ro Abordaj ru ... more details