Kölliken railway station

Kölliken is a municipality in the district of Zofingen in the canton of Aargau in Switzerland. It is also home to one of the two most toxic hazardous waste landfills in all of Switzerland. The other site is in Bonfol, Canton Jura.

Kölliken Oberdorf railway station (German: Bahnhof Kölliken Oberdorf) is a railway station in the municipality of Kölliken, in the Swiss canton of Aargau. It is an intermediate stop on the standard gauge Zofingen–Wettingen line of Swiss Federal Railways.

Holziken is a municipality in the district of Kulm in the canton of Aargau in Switzerland.

Muhen is a municipality in the district of Aarau of the canton of Aargau in Switzerland.

Oberentfelden railway station (German: Bahnhof Oberentfelden) is a railway station in the municipality of Oberentfelden, in the Swiss canton of Aargau. It is an intermediate stop on the standard gauge Zofingen–Wettingen line of Swiss Federal Railways. The station is located some 180 metres (590 ft) from Oberentfelden Engelplatz on the 1,000 mm (3 ft 3+3⁄8 in) gauge Aarau–Schöftland line of Aargau Verkehr.

Unterentfelden is a municipality in the district of Aarau of the Canton of Aargau in Switzerland.

Hirschthal is a municipality in the district of Aarau of the canton of Aargau in Switzerland.

Schöftland Nordweg railway station (German: Bahnhof Schöftland Nordweg) is a railway station in the municipality of Schöftland, in the Swiss canton of Aargau. It is the penultimate station at the western end of the 1,000 mm (3 ft 3+3⁄8 in) gauge Schöftland–Aarau–Menziken line of Aargau Verkehr.

The Eppenberg Tunnel is a railway tunnel in the Canton of Solothurn, Switzerland. It is part of the 'Future Development of Railway Infrastructure' plan (German: Zukünftige Entwicklung der Bahninfrastruktur or 'ZEB') and increases capacity on the Aarau–Olten line in the Schönenwerd–Däniken section. A particularly constraining bottleneck in the Swiss rail infrastructure is in the section between Aarau and Olten, which has only two tracks at Eppenberg-Wöschnau, Schönenwerd and Gretzenbach. The route has to be shared by international and national passenger trains as well as freight. Hence quadrupling the complete line between Aarau and Olten has high priority among infrastructure projects. The main purpose of the tunnel is to increase capacity. The two additional tracks in parallel with the existing double track line will effectively create a four track line. The Council of States adopted the law authoring the 'ZEB' programme in the spring session of 2009, authorising the budget for the Eppenberg tunnel. Due to the large financial requirements for the New Railway Link through the Alps project, construction of the Eppenberg tunnel only began in 2015.

Oberentfelden is a municipality in the district of Aarau of the canton of Aargau in Switzerland.

Uerkheim is a municipality in the district of Zofingen in the canton of Aargau in Switzerland.

Schöftland railway station (German: Bahnhof Schöftland) is a railway station in the municipality of Schöftland, in the Swiss canton of Aargau. It is the western terminus of the 1,000 mm (3 ft 3+3⁄8 in) gauge Schöftland–Aarau–Menziken line of Aargau Verkehr.