Spillgebees.Transmodel

Strongly-typed C# XML bindings for Transmodel-based European public transport standards. Currently, covers NeTEx (Network Timetable Exchange) and SIRI (Service Interface for Real-time Information), with the flexibility to support additional Transmodel-based standards.

Generated from the official CEN XSD schemas and verified with automated tests.

Note: This project was developed with significant AI assistance. While it is functional and tested, it has not yet undergone a full manual review. Treat it as pre-production. Cntributions and feedback are welcome.

Generator tool

A CLI tool that downloads XSD schemas from the official CEN repositories and generates modern C# XML bindings with the latest features. Use it to generate bindings for any schema version, including unreleased branches or specific commits.

Package	NuGet
Spillgebees.Transmodel.Generator

dotnet tool install -g Spillgebees.Transmodel.Generator

NeTEx generation

transmodel-generator generate-netex --version v1.3.1 --output ./Generated --namespace MyApp.NeTEx

Generates XML bindings with the following sub-namespaces:

Sub-namespace	XML Namespace	Description
MyApp.NeTEx.NeTEx	http://www.netex.org.uk/netex	NeTEx types
MyApp.NeTEx.SIRI	http://www.siri.org.uk/siri	SIRI types (subset bundled with NeTEx)
MyApp.NeTEx.GML	http://www.opengis.net/gml/3.2	GML types (geographic markup)

SIRI generation

transmodel-generator generate-siri --version v2.2 --output ./Generated --namespace MyApp.SIRI

Generates XML bindings with the following sub-namespaces:

Sub-namespace	XML Namespace	Description
MyApp.SIRI.SIRI	http://www.siri.org.uk/siri	Core SIRI types
MyApp.SIRI.IFOPT	http://www.ifopt.org.uk/ifopt	IFOPT types
MyApp.SIRI.ACSB	http://www.ifopt.org.uk/acsb	Accessibility types
MyApp.SIRI.DATEX2	http://datex2.eu/schema/2_0RC1/2_0	DATEX2 types
MyApp.SIRI.WSDL	http://wsdl.siri.org.uk	WSDL/SOAP types
MyApp.SIRI.GML	http://www.opengis.net/gml/3.2	GML types (geographic markup)
MyApp.SIRI.W3	http://www.w3.org/XML/1998/namespace	W3 types

CLI reference

transmodel-generator generate-netex [options]
transmodel-generator generate-siri  [options]

Options:
  -v, --version <version>      Schema version tag (default: v1.3.1 for NeTEx, v2.2 for SIRI)
  --ref <ref>                  Git ref (branch or commit SHA), mutually exclusive with --version
  -o, --output <output>        Output directory for generated C# files (default: ./Generated)
  -n, --namespace <namespace>  Root C# namespace (default: NeTEx.Models / SIRI.Models)
  --clean                      Delete output directory before generating
  --verbose                    Enable verbose logging

transmodel-generator list-netex-versions   List available NeTEx version tags
transmodel-generator list-siri-versions    List available SIRI version tags

Pre-generated packages

If you don't need custom generation, install one of the pre-generated packages below. These are built with the same generator, tested, and published to NuGet for every release.

NeTEx

Versions correspond to tags in the NeTEx-CEN/NeTEx GitHub repository.

NeTEx version	Package	NuGet
v1.2	Spillgebees.NeTEx.Models.V1_2
v1.2.2	Spillgebees.NeTEx.Models.V1_2_2
v1.2.3	Spillgebees.NeTEx.Models.V1_2_3
v1.3.0	Spillgebees.NeTEx.Models.V1_3_0
v1.3.1	Spillgebees.NeTEx.Models.V1_3_1
All versions	Spillgebees.NeTEx.Models

dotnet add package Spillgebees.NeTEx.Models.V1_3_1

Each NeTEx version package contains three sub-namespaces:

Sub-namespace	XML Namespace	Description
.NeTEx	http://www.netex.org.uk/netex	NeTEx types
.SIRI	http://www.siri.org.uk/siri	SIRI types (subset bundled with NeTEx)
.GML	http://www.opengis.net/gml/3.2	GML types (geographic markup)

using System.Text;
using System.Xml;
using System.Xml.Serialization;
using Spillgebees.NeTEx.Models.V1_3_1.NeTEx;

var delivery = new PublicationDeliveryStructure
{
    PublicationTimestamp = DateTimeOffset.UtcNow,
    ParticipantRef = "my-data-provider",
    Description = new MultilingualString { Value = "Stop places export" },
};

var serializer = new XmlSerializer(typeof(PublicationDeliveryStructure));
using var stream = new MemoryStream();
using var xmlWriter = XmlWriter.Create(stream, new XmlWriterSettings
{
    Encoding = new UTF8Encoding(encoderShouldEmitUTF8Identifier: false),
    Indent = true,
});
serializer.Serialize(xmlWriter, delivery);

// <?xml version="1.0" encoding="utf-8"?>
// <PublicationDelivery xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" ...>
//   <PublicationTimestamp>2026-02-13T12:00:00+00:00</PublicationTimestamp>
//   <ParticipantRef>my-data-provider</ParticipantRef>
//   <Description>Stop places export</Description>
// </PublicationDelivery>

SIRI

Versions correspond to tags in the SIRI-CEN/SIRI GitHub repository.

SIRI version	Package	NuGet
v2.1	Spillgebees.SIRI.Models.V2_1
v2.2	Spillgebees.SIRI.Models.V2_2
All versions	Spillgebees.SIRI.Models

dotnet add package Spillgebees.SIRI.Models.V2_2

Each SIRI version package contains seven sub-namespaces:

Sub-namespace	XML Namespace	Description
.SIRI	http://www.siri.org.uk/siri	SIRI types
.IFOPT	http://www.ifopt.org.uk/ifopt	IFOPT types
.ACSB	http://www.ifopt.org.uk/acsb	Accessibility types
.DATEX2	http://datex2.eu/schema/2_0RC1/2_0	DATEX2 types
.WSDL	http://wsdl.siri.org.uk	WSDL/SOAP types
.GML	http://www.opengis.net/gml/3.2	GML types (geographic markup)
.W3	http://www.w3.org/XML/1998/namespace	W3 types

using System.Text;
using System.Xml;
using System.Xml.Serialization;
using Spillgebees.SIRI.Models.V2_2.SIRI;

var siri = new Siri
{
    ServiceDelivery = new ServiceDelivery
    {
        ResponseTimestamp = DateTimeOffset.UtcNow,
    },
};

var serializer = new XmlSerializer(typeof(Siri));
using var stream = new MemoryStream();
using var xmlWriter = XmlWriter.Create(stream, new XmlWriterSettings
{
    Encoding = new UTF8Encoding(encoderShouldEmitUTF8Identifier: false),
    Indent = true,
});
serializer.Serialize(xmlWriter, siri);

// <?xml version="1.0" encoding="utf-8"?>
// <Siri xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" ...>
//   <ServiceDelivery>
//     <ResponseTimestamp>2026-02-13T12:00:00+00:00</ResponseTimestamp>
//   </ServiceDelivery>
// </Siri>

Building from source

The generated bindings are not committed to the repository, they are generated at build time. To build locally:

dotnet build Spillgebees.Transmodel.slnx --configuration Release
dotnet test --solution Spillgebees.Transmodel.slnx --configuration Release

The build downloads the XSD schemas from GitHub, generates the XML bindings, and compiles them. Downloaded schemas are cached in local app data so subsequent builds don't require network access.

Use dotnet clean to remove the generated files and trigger a fresh generation on the next build.

Supported frameworks

• .NET 10.0

License

This project is licensed under the European Union Public Licence v. 1.2 (EUPL-1.2).

The NeTEx schemas are licensed under GPL-3.0 by CEN. EUPL-1.2 is compatible with GPL-3.0 per its compatibility clause. The SIRI schemas are published by CEN on the SIRI-CEN/SIRI repository without an explicit open-source license.