Y2K compatibility information

adminIntersection Magic Windows > Data

Every version of Intersection Magic ever shipped stores all of its dates as julian numbers. This means that we shouldn't have any date problems for as long as cars skid on pavement. However, your source data may not be year 2000 compatible.

 Copying an Intersection Magic database

adminIntersection Magic Windows > Data

The Intersection Magic database is contained in a number of files. This article describes which of these files should be copied when moving or copying the database to a new location.
NOTE: Beginning with version 6.x of the program, there is an option called "copy" under the Utilities / Database menu. This is the preferred method of copying databases in Intersection Magic.

 Which versions of Windows does Intersection Magic support?

adminIntersection Magic Windows > Installation and setup

Intersection Magic is currently in support only mode.  No future upgrades will be released. The recommended upgrade path is to Crash Magic. Intersection Magic is written to function in the Microsoft Windows environment. With each new version of Windows comes questions of compatibility. This article describes known compatibility issues under the various versions of Windows.

 How to prepare data for use in Intersection Magic

adminIntersection Magic Windows > Data

Intersection Magic has been designed to support a wide variety of data formats. This data may originate on a mainframe, mini, or micro computer. In some areas data may be obtained directly from the state, California, Iowa, Oregon, Arizona and Idaho to name a few. In other areas, data is stored at police departments on mainframes. In still others, data is maintained on PC database programs. Intersection Magic supports all of these cases. This article describes the various options and requirements for preparing data to import into Intersection Magic.

 Performing a full install from an update CD / diskette

adminIntersection Magic Windows > Configuration

When Intersection Magic updates are sent to users, the 'custom configuration' that was sent for the first install is not included with the update cd or diskettes. The result is that, for a network install, no data directory (containing imwuser.exe) is created, and thus the 'client' side of the install can not take place. For a local install, only the demo/tutorial is installed, there is not IMW icon or DATA directory.

 the first two characters of the CASE_ID number are removed

adminIntersection Magic Windows > Networking

Scanned images for crash records may be stored in a centralized location or on a web server and accessed when viewing a crash record in Intersection Magic. Beginning with v6.611, users may use the filter mechanism to specify the a web address or path, filename and even the extension of the image to load. This article describes some ways of using this powerful feature.

 Why does my new SWITRS data have only 3 characters for a CaseID?

adminIntersection Magic Windows > Configuration

CA CHP introduced a new structure for SWITRS data beginning with data send after June 2002 (although most of this new format didn't ship until 2003) Pd' Programming made available a new configuration to read this data free-of-charge to all current subscribers to our Intersection Magic software. On February 13, 2003 we identified a minor problem with the new configuration. The caseID format in this new CHP data structure is variable - it is different after 1/1/2000. This article describes how to correct your configuration and database if you downloaded the new configuration prior to 2/18/2003 and imported 2002 data using it.

 Can I create new crash symbols?

adminIntersection Magic Windows > Diagrams

Intersection Magic's symbols to represent vehicles, fixed objects, dui, etc. reside in a symbol library that can be modified. Therefore, new symbols can be created and then introduced into the object table (.tbs) file and displayed in collision diagrams.

 Another worktation is READING or WRITING to this database

adminIntersection Magic Windows > Errors / crashes

Intersection Magic keeps track of users who are accessing the database. At any one time there may be many people READING from the database. However, if anyone is writing to the database, no one else may READ or WRITE at the same time. If you are attempting to READ when you get this message, then another use has opened the database for WRITING. If you attempting to WRITE to the database, then another user is READING the database. Note: This message can also be caused by the program having crashed during a READ or WRITE operation and not released its lock on the database.

 What to do when your data provider changes the format.

adminIntersection Magic Windows > Configuration

Intersection Magic is 'configured' for a particular format of ASCII data. When you first purchased IMW, we probably prepared a custom configuration. This custom configuration defines, among other things, the order of the fields in the ASCII import file; the meanings of any coded fields; the method of parsing, or extracting the data from any given field. Periodically, states re-evaluate the crash report form that they are using. When this is done, they frequently add or remove fields. Occasionally, they add or remove codes for a particular fields. Rarely, and unfortunately, they change the value that a code represents in a particular field. This article describes some things to think about if you find that your data source is different than it was when we prepared your configuration.

 Manual update / verification required after upgrading from v6.5x to a newer version.

adminIntersection Magic Windows > Data

Changes made in version 6.615 require user verification of cross-street data. Note that because the changes only affect cross street ordering associated with the use of aliases, this information only applies to users who have prepared cross street listings using the streets manager. Also, if aliases have never been used, this information does not apply.

 Performing supplemental data imports

adminIntersection Magic Windows > Configuration

On occasion, users have the need to supplement records in their database without removing data already stored for those records. An example would be if you have a data source that provides you all the crash data you need except for direction from intersection. You have another source that can provide direction from intersection and uses the same caseid number that the first data source uses. This is a use for Supplemental importing.

 Differences between in-house and Intersection Magic data

adminIntersection Magic Windows > Configuration

The data in Intersection Magic is usually obtained from local city, county or state sources. In most cases, it is possible to query these sources to list the same data being reported by Intersection Magic. WeÕve found that when this is done, there may be discrepancies between the two systems. There can be several causes for these discrepancies. This document describes how we attempt to identify and resolve these differences when contacted by a concerned user of our software. While we welcome you to contact us, it is our hope that you can take the first steps yourself using the information provided here.

 SWITRS crash data is imported incorrectly

adminStandard configurations > California (SWITRS)

The California Highway Patrol (CHP) maintains the crash records that you use as SWITRS data. In January of 1998 they modified the format which had been used for many years. The format was changed to add the century to any dates in the data file. This makes the data y2k compatible. This requires special treatment of SWITRS data by Intersection Magic.

 Creating a new cityid.txt file

adminIntersection Magic Windows > Configuration

Since the earliest version of Intersection Magic, the install program has looked for a file called cityid.txt to identify configurations to include in the install process. This file always needs to be included in the data directory of the install diskette, and on the hard disk. Beginning with version 6.002, this cityid.txt file is also used by the Intersection Magic program to identify that it is running in a valid directory, and to describe the configuration. This article describes how to create such a file.