PHP Classes

PHP Vehicle Routing Problem: Compute routes of trucks delivering client orders

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Version License PHP version Categories
ocvrp 0.1BSD License3.0Algorithms, Geography
Description 

Author

This class can compute routes of trucks delivering client orders.

It takes the geographic coordinates of a depot and the locations clients with orders to be delivered by a fleet of trucks.

The class uses a 2-phase algorithm for solving the open capacitated vehicle routing problem.

It tries to minimize the total route cost by trying all possible combinations. The trucks are not required to return to the depot.

Innovation Award
PHP Programming Innovation award winner
July 2014
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Prize: PhpStorm IDE personal permanent license
Some businesses need to deliver products to their customers using cargo transportation vehicles.

To reduce the costs it is necessary to optimize the routes that the vehicles take to deliver the products.

This class implements an alternative vehicle routing solution that is very accurate, as it computes the euclidean distance between client sites.

Manuel Lemos
Picture of Chi H.
  Performance   Level  
Name: Chi H. <contact>
Classes: 28 packages by
Country: France France
Age: 39
All time rank: 34122 in France France
Week rank: 22 Up3 in France France Up
Innovation award
Innovation award
Nominee: 22x

Winner: 3x

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Vehicle routing problem
Vehicle routing problem using the branch and bound algorithm

Example

<?php
/* * *************************************************************
 * Copyright notice
 *
 * (c) 2010-2014 Chi Hoang (info@chihoang.de)
 * All rights reserved
 *
 * **************************************************************/
  
 
require_once("ocvr.php");
 
$clients = array (
               array(
"latlng"=>"50.1005233,8.6544487",
                     
"zipcode"=>"12341",
                     
"load"=>"2"),
               array(
"latlng"=>"50.0907496,8.7839489",
                     
"zipcode"=>"12342",
                     
"load"=>"3"),
               array(
"latlng"=>"50.2002273,8.1004734",
                     
"zipcode"=>"12343",
                     
"load"=>"4"),
               array(
"latlng"=>"50.0951493,8.4117234",
                     
"zipcode"=>"12344",
                     
"load"=>"2"),
               array(
"latlng"=>"49.4765982,8.3508367",
                     
"zipcode"=>"12345",
                     
"load"=>"1"),
               array(
"latlng"=>"48.7827027,9.1828630",
                     
"zipcode"=>"12347",
                     
"load"=>"8"),
               array(
"latlng"=>"48.7686426,9.1686483",
                     
"zipcode"=>"12348",
                     
"load"=>"9"),
               array(
"latlng"=>"48.7829101,9.2118466",
                     
"zipcode"=>"12349",
                     
"load"=>"10"),
               array(
"latlng"=>"48.9456327,8.9670738",
                     
"zipcode"=>"12350",
                     
"load"=>"7"));
                      
   
$depot=array(array( "latlng"=>"49.7957240,6.6790269",
                      
"zipcode"=>"55555"
               
));
               
   
$route=new ocvr;
    echo
"Please wait.\r\n<br>";
   
$result=$route->main($depot,$clients);
    echo
"Calculation time:".round($route->dur)."Sek.\r\n<br>";
    echo
"Number of combinations:".round($route->nCr/1000)."K\r\n<br>";
    echo
"Peak memory:".round($route->peakmem/1024)."MB\r\n<br>";
    echo
"Max. load per truck:".MAXCAPACITY."\r\n<br>";
    echo
"Number of trucks:".$result["no"]."\r\n<br>";
    foreach (
$result["trucks"] as $key=>$arr)
    {
         echo
"Truck $key:".$arr."Load\r\n<br>" ;
    }
    echo
"Totaldistance:".$result["totaldist"]."km\r\n<br>";
?>


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  Files folder image Files  
File Role Description
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Plain text file hilbert.php Class helper class
Plain text file mercator.php Class helper class
Plain text file ocvr.php Class main class

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