A double-decker’s aerodynamic problem
The development account links the revised nose and roof ventilation to exterior noise and tunnel pressure-wave control. The large body required attention to airflow beyond the cab alone.
新幹線
E4 · Tōhoku · Jōetsu
細看特徵
Two decks meet a much longer, lower nose than E1.
技術與主要規格
E4 · one eight-car set · 1999/2013 specifications
Two eight-car sets could form a sixteen-car train. The electrical equipment uses IGBT switching; the aluminium body helped reduce the mass of an all-double-deck train.
| 編組·輛數 / M / T | 8 · 4M4T |
|---|---|
| 編組長度 | 201 m |
| 車體寬度 | 3,380 mm |
| 單台馬達輸出功率 | 420 kW · continuous |
| 供電方式 | AC 25 kV · 50 Hz |
| 列車防護系統 | DS-ATC |
| 牽引控制 | IGBT · three-level PWM 2 |
M為動力車，T為無動力車。數值以一組列車為單位。
佐證資料 · 2026-11-07
- JR-East Shinkansen · JR East · Yagishita · 2013 · Slide “Features of rolling stock”, comparison table
- 社会・産業・家庭 · E4系2階建新幹線電車 · 日立製作所 · 日立評論 · 1999-01 · 交通システム · E4系2階建新幹線電車
解讀車輛設計
E4 development features · Hitachi 1999 introduction
| Roof air-conditioning | Revised air intake and discharge arrangement |
|---|---|
| Acoustic design | Reduced transformer and traction-motor noise |
| Structure | Aluminium construction for a lighter double-deck train |
技術資料與頁碼
- 東日本旅客鉄道株式会社納めE4系2階建新幹線電車
日立評論 · 1999-01 · 交通システム / E4系2階建新幹線電車; indexed original excerpt (full PDF exceeds retrieval limit)
Details from the literature
Why build a double-deck Shinkansen?
Hood connects the E4’s capacity with growing commuter use around Tokyo. Two decks and the ability to couple trains addressed concentrated demand. His historical photographs also show why a lower-deck window could face a sound barrier rather than an open landscape.
座位指南
In an old interior photo, look for the aisle and the nearest automatic door. On the upper deck of cars 1–3, the rows narrowed from six seats to four near that door. The second car numbers apply to a coupled set.
| 上層 | Car 1–3 / 9–11 | 3 + 3 |
|---|---|---|
| 上層近車門處 | Car 1–3 / 9–11 | 2 + 2 |
| 上層 | Car 4–6 / 12–14 | 2 + 3 |
Seat plans and sources · JR東日本 · E4系MAX大解剖
資料來源與更新
查核日期 2026-11-07