• The Line            

- Amsterdam - Schiphol: 17 kilometres
- Schiphol - Hoofddorp: 5 kilometres
- Hoofddorp - start high-speed track: 2 kilometres
- start high-speed track - end high-speed track: 42 kilometres
- end high-speed track - Rotterdam CS: 4 kilometres
- Rotterdam CS - Rotterdam Lombardijen: 7 kilometres
- Rotterdam Lombardijen - start high-speed track: 5 kilometres
- high-speed track - Belgian border: 43 kilometres.

• 32,5 kilometres no-recess concrete slab;  
• 25% of the track is at ground level;  
• 75% of the HSL route consists of 170 construction works: viaducts, 4 tunnels, dive-unders, an aqueduct and a number of bridges. 
  
  Most remarkable constructions:     
  - longest span over water on the HSL route between Amsterdam and Paris: 1200 metres long bridge over the Hollandsch Diep waterway (excluding access ramps; 2 kilometres including access ramps); 
  - bored tunnel with world's greatest diameter: The Groene Hart Tunnel, with 7160 bored metres ( excluding access ramps) and almost 15 metres in diameter; 
  - longest viaduct in Europe: Bleiswijk - elvated section 6 kilometres;  
  - Ringvaart Aqueduct.                 
• Crossings: no level crossings.  
• Bundling with motorways:              

- A4 between Leiden and Hoogmade (8 kilometres);
- A16 between Hollandsch Diep waterway and Belgian border (25 kilometres);                 

• Realignment and widening of motorways (from 2x2 lanes to 2x3):             

- A4 Ringvaart Aqueduct - Dwarswetering; 
- A16 Galder Junction - Moerdijk.       

• 40 kilometres of the route in the Netherlands do not lead over high speed track, but over existing or newly laid regular tracks.
• HSL connects with existing track in 5 places:              

- Hoofddorp; 
-  Rotterdam West; 
- Rotterdam Lombardijen;  
- Zevenbergschen Hoek;
- Breda.               

• Power supply: 25,000 Volt (25 kilo Volt).
• Safety system: ERTMS, the latest European rail safety standard.          

• Stations:             

- Amsterdam, 
- Schiphol, 
- Rotterdam, 
- Den Haag,  
- Breda

• Speed:               

- On the route Amsterdam-Paris (Thalys): maximum of 300 kilometres per hour;
- on domestic routes and the connection to Brussels: maximum of 250 kilometres per hour.                   

• Operator: HSA (High Speed Alliance) joint venture of KLM (Royal Dutch Airlines) and NS (Dutch Railways).          
• Infrastructure Manager:         

- contract management: ProRail;  
- execution: Infraspeed.                    

• Costs: € 7,154 million (including VAT, excluding availability compensation infrastructure provider - price level 2007 / source:  Progress Report 22).        
• Publication first HSL Memorandum/Key National Spatial Planning Decision (PKB) 1: 1994;
• Lower House approves PKB: 1997; 
• Finalization Route Decision: 1998;
• Start of project: 2000;
• Start of commercial transport on HSL: 2008.